Why the Hardest Rocks Can Be Easy to Break

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SciShow

SciShow

Місяць тому

So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of hardness, and topaz is a perfect stone to talk about to explain that. And you can check it out in our SciShow Rocks Box subscription!
Hosted by: Stefan Chin (he/him)
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#SciShow #science #education #learning #complexly
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Sources:
Mohs Hardness Scale (U.S. National Park Service).
ballarini.cive.uh.edu/wp-cont...
Topaz | Geoscience Australia
Cleavage of Minerals | Geology In
www.tandfonline.com/doi/abs/1...
The Largest Faceted Gemstones in the World | Geology In
Moh's hardness scale compared to indentation hardness
www.chemeurope.com/en/encyclo...
www.minsocam.org/ammin/AM21/AM...
www.palagems.com/topaz-buying...
www.langantiques.com/universi...
www.gemsociety.org/article/to...
www.ga.gov.au/education/miner...
Image Sources:
www.gettyimages.com/detail/vi...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/vi...
www.gettyimages.com/detail/vi...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/ph...
opentextbc.ca/physicalgeology...
www.nature.com/articles/s4152...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/vi...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...
www.gettyimages.com/detail/ph...

КОМЕНТАРІ: 298
@SciShow
@SciShow Місяць тому
Hey! You’re not imagining things. We did reupload this! Thank you to all the gneiss people who pointed out something was up with the audio before.
@saber1epee0
@saber1epee0 Місяць тому
You are so gneiss to clarify that! DFTBA!!!!
@aidankeller1717
@aidankeller1717 Місяць тому
Holy schist, I did think I was imagining things.
@PrototypeMarl
@PrototypeMarl Місяць тому
No wonder I was experiencing deja vu
@topogigio7031
@topogigio7031 Місяць тому
What's with the clickbait thumbnail that you can't show in schools?
@darkpepsi
@darkpepsi Місяць тому
Can’t take for granite that happened.
@JMD501
@JMD501 Місяць тому
People think hard means strong. You know what's pretty hard, glass.
@dannynysus
@dannynysus Місяць тому
That makes two of us...
@dianapennepacker6854
@dianapennepacker6854 Місяць тому
Yeah isn't there like four definitions now or ways to measure strength? Hardness. Toughness. How good something does under tension and then compression. Think there is an other one regarding how it keeps its shape. Or maybe I'm just confusing the tools and their what their measurements are called.
@JMD501
@JMD501 Місяць тому
@@dianapennepacker6854 compression?
@God-ld6ll
@God-ld6ll Місяць тому
hardly 😅
@dianapennepacker6854
@dianapennepacker6854 Місяць тому
​@@JMD501Yeah, sorry I meant to say compression and tension. Think there is an other one. Maybe I'm just confusing the tools.
@algebrainz5989
@algebrainz5989 Місяць тому
Round of applause for the audio engineer and continued appreciation to the graphic designer in charge of thumbnails
@samstarlight160
@samstarlight160 Місяць тому
The thumbnail was excellent! "Oooh cleavage" lol
@algebrainz5989
@algebrainz5989 Місяць тому
@@samstarlight160 the rockslide video with the thumbnail of a mountain going down a playground slide with hands up in excitement, I hope that worked earned them a hefty raise
@adamrolland2640
@adamrolland2640 Місяць тому
Thought this video was going to be about Marissa Tomei
@GeneralJoey747
@GeneralJoey747 Місяць тому
Rocks are hard and so am I
@rickykirk1
@rickykirk1 Місяць тому
beautiful thumbnail
@CompletingTheCircuit
@CompletingTheCircuit Місяць тому
This 😂
@Th3F0nz
@Th3F0nz Місяць тому
Very attention grabbing.... 👀
@SciMinute
@SciMinute Місяць тому
The sapphire glass on the watch is very hard to scratch but often easily broken, so I was very curious about this topic!
@SalivatingSteve
@SalivatingSteve Місяць тому
I noticed the opposite of that with Gorilla Glass branded as the iPhone Ceramic Shield. My iPhone 13 Pro got a noticeable scratch on part of the screen only 2 weeks after I bought it. It’s more durable at resisting shattering, but scratches more easily. I think for a phone it’s better to resist shattering from drops, whereas a watch needs to resist scratches more from brushing against things.
@fwiffo
@fwiffo Місяць тому
Sapphire used for watch crystals isn't glass at all - it's sapphire. It's actually tougher than most glass, but it's definitely possible to shatter. It's basically scratch-proof though, unless you're constantly banging your arm into diamonds or silicon carbide.
@auroraourania7161
@auroraourania7161 Місяць тому
@@fwiffoI think the lab grown, clear sapphires used for stuff like that are typically referred to as sapphire glass, even though it's not a glass.
@angusmctwangstick4079
@angusmctwangstick4079 Місяць тому
I wonder how many other people left UKposts to Google the Eldorado Topaz but never returned for the rest of the video. It's really quite impressive! Why didn't sci-show just show it?
@mayaenglish5424
@mayaenglish5424 Місяць тому
Perhaps the images were expensive. They're a legitimate business not some random tik tok account, they can't just grab whatever music or images they want to use without paying for it.
@tomwatts9822
@tomwatts9822 Місяць тому
guilty
@Vyz3r
@Vyz3r Місяць тому
​@@mayaenglish5424Nah, there's fair use so that's not it. Even if they're not allowed to use a few images, there's plenty of publicly available pictures of the place.
@auroraourania7161
@auroraourania7161 Місяць тому
@@Vyz3rFair use is a lot, lot more limited than people think, and unless they were somehow critiquing the image or parodying it, it would not actually be protected. Educating using an image does not count. And by publicly available, do you mean that, or creative commons/public domain? Since someone posting it on facebook or something doesn't mean it's free to use.
@azilbean
@azilbean Місяць тому
Me!!😅 I Googled it, but came back!
@baystated
@baystated Місяць тому
This video rocks. I totally dig it. A real gem.
@nHans
@nHans Місяць тому
Indeed. Very illuminating. Brilliant script and nicely cut video. The colorful examples brought clarity to a tough subject. Didn't just scratch the surface, but polished away the hard inclusions till the facets became crystal clear.
@garybarnes4169
@garybarnes4169 Місяць тому
You know you're going to hell for these puns, right? Still, I have to admire your stones.
@markedis5902
@markedis5902 Місяць тому
I refuse to get my mind out of the gutter as it’s happiest when it’s there.
@alden1132
@alden1132 Місяць тому
Usually, the better the cleavage, that harder things are... 😁
@garybarnes4169
@garybarnes4169 Місяць тому
Some people have their minds in the gutter. Some of us have to use a periscope. 🙈
@NomadUniverse
@NomadUniverse Місяць тому
Toughness and hardness are very much two different things. Hardness is a resistance to penetration, toughness is a resistance to being pulled apart. Most things are either hard or tough, not both. Indentation testing uses Rockwell scales, by the way.
@VeroTesta
@VeroTesta Місяць тому
"Jesus Christ, Marie! They're Minerals!" - Hank Schrader
@BanditLeader
@BanditLeader Місяць тому
the most misquoted thing in the entire series. he actually says "No, they're minerals. Jesus, Marie"
@VeroTesta
@VeroTesta Місяць тому
@@BanditLeader oh, I know, but like "Luke, I am your father" the meme form may differ from a verbatim quotation.
@Les537
@Les537 Місяць тому
you you you you you you killed uncle hank!
@nHans
@nHans Місяць тому
Elementary, my dear Watson.
@VeroTesta
@VeroTesta Місяць тому
@@Les537 ;_; such a tragedy, seriously. I luv W.W. Jr.
@anyascelticcreations
@anyascelticcreations Місяць тому
As a self taught almost jeweler who works with gems on a regular basis I really enjoyed this video. Both scratch and indentation resistance are important for the work I do. So it's really fun to see a Scishow video on this topic. Plus, I've loved all things rocks since I was a little girl. Thanks Scishow! 😊
@TheEducat0r
@TheEducat0r Місяць тому
I never thought I'd be so captivated by rocks! Thanks for the eye-opening lesson.
@stephanieparker1250
@stephanieparker1250 Місяць тому
I love this series. The back ground and set, the hosts; the cool rocks, the interesting info.. keep it up. 👍
@andrewschlup6169
@andrewschlup6169 Місяць тому
My eye only twitched a little bit each time he said "tough". Aside from that, great video!!
@FrozEnbyWolf150
@FrozEnbyWolf150 Місяць тому
I'm here to listen to SciShow talk about "perfect cleavage" for six minutes.
@status101-danielho6
@status101-danielho6 Місяць тому
I greatly appreciate perfect cleavage, but all I'm seeing is a video about rocks. :)
@toddhardy6224
@toddhardy6224 Місяць тому
It looks like you are holding a topaz specimen from topaz mountain in Utah. That's one of my favorite places to find crystals. I have buckets full of topaz from there, and I always give handfuls to people who want them. But my favorite crystals from that location are all of the red beryls that I've found. I don't give those away as readily, since they are one of the most rare gems in the world.
@theominousbulge
@theominousbulge Місяць тому
The thumbnail is hilarious. Also Stefan has gotten really good at presenting these videos.
@LynHannan
@LynHannan Місяць тому
Decades ago (well before internet was a thing), I heard that while diamonds are the hardest, they are also brittle - they can shatter if dropped (?). Not sure of the validity of it, but it makes sense to me - if there is no "give", then it will fail. Hard does not equate with strong, nor vice versa.
@charlizard_762
@charlizard_762 Місяць тому
I work with diamonds daily, using whole diamonds as a cutting tool. They can shatter if you drop them and chip just by cleaning them off with a Kleenex so that’s very true
@aidankeller1717
@aidankeller1717 Місяць тому
'Tis true.
@emberrose82
@emberrose82 Місяць тому
They have a grain like wood and if not right absolutely can shatter easily. I use to do appraisals for mainly diamond jewelry and had to become diamond certified. It was fascinating
@fwiffo
@fwiffo Місяць тому
Diamonds can also burn (with some effort). Sapphire is the superior gemstone.
@SpringStarFangirl
@SpringStarFangirl Місяць тому
This is why moissanite is so cool- it's harder than corundum at 9.25-9.5, but has far fewer cleavage planes and is thus far harder to shatter than even diamond.
@praveenb9048
@praveenb9048 Місяць тому
The fact that we are all here watching this video, has a lot to do with the fact that rocks tend to cleave. Because flint knapping was a big factor in our ancestors surviving and spreading over the world.
@erinmcneil1465
@erinmcneil1465 Місяць тому
I had a friend in middle school who said she would build a deep sea submarine out of a huge diamond because it could stand up to the pressure because it was so high on the mohs scale and I always thought that wasn’t quite right but could never figure out how to explain my thinking, thanks for answering a question I’ve had about the hardness of minerals for over ten years!
@dragonboy123000
@dragonboy123000 Місяць тому
SciShow's videos are always awesome, but this one just rocks. 🗿
@sandstorm6605
@sandstorm6605 Місяць тому
Is that a vintage early 80’s faux wood Rat Shack alarm clock radio with 9v battery backup?! If so let’s stop to appreciate the real gem in the room here.. 😉
@daniel6678
@daniel6678 28 днів тому
I'm always down for more geology SciShow content!! It's my favorite subject - would love to see even more!
@TasareAlda
@TasareAlda Місяць тому
Much better thanks!
@Diva_4720
@Diva_4720 Місяць тому
Awesome! Audio is all right again 😁
@FuchsDanin
@FuchsDanin Місяць тому
It's better, but it's still clipped pretty badly. They just turned it down a little more.
@TheKingAdRock93
@TheKingAdRock93 Місяць тому
I miss Stefan being on Tangents. He is completely unhinged
@nHans
@nHans Місяць тому
15 seconds into the video, Stefan says _"The higher the [Mohs'] number, the _*_harder_*_ the stone. So a stone that’s an eight on the scale, like topaz, must be pretty _*_tough,_*_ right?" And I'm immediately like "Dude, _*_hardness_*_ and _*_toughness_*_ are __*_two different things!_* Did you honestly misspeak, or is this a deliberate-but amateurish-attempt to confuse your viewers?" Sigh. Not being a native English speaker often helps me understand science and technology better than native English speakers. The latter mistakenly assume that because "hard" and "tough" mean roughly the same thing in everyday English, the same meanings should carry over to technical usage as well.
@jackbucher2049
@jackbucher2049 Місяць тому
you seem genuinely insufferable
@OllieWille
@OllieWille Місяць тому
Love the new sets!
@napdogs
@napdogs Місяць тому
I was hoping you'd mention the hardest gem to break. Which is jade, surprisingly.
@fadjrinfaisal8662
@fadjrinfaisal8662 Місяць тому
hardest? with 6.5 - 7 mohs scale?
@napdogs
@napdogs Місяць тому
@@fadjrinfaisal8662 Somehow you missed the entire point of the video and my comment. I said hardest to BREAK not hardest to scratch.
@alexandraford4739
@alexandraford4739 Місяць тому
@@fadjrinfaisal8662 Behold, the guy who did not the watch the video.
@fadjrinfaisal8662
@fadjrinfaisal8662 Місяць тому
@@napdogs mohs scale is not about scratch, is about how hard it to break. 1-3 mean is, the minerals is not hard to break. You just can break a 1 mohs scale minerals with finger not even fingernail. And hardes gem to break is a 10 mohs scale minerals for sure
@fadjrinfaisal8662
@fadjrinfaisal8662 Місяць тому
@@alexandraford4739 the man in the video does not even talk abt rocks, it's minerals and more focused on topaz
@fwiffo
@fwiffo Місяць тому
Spinel is the most underrated gemstone.
@alainfaber
@alainfaber Місяць тому
Excellent overview on rock hardness! I collect minerals for their uniqueness! Alain Faber
@lizshoemaker
@lizshoemaker Місяць тому
My rock box subscription makes my nerdy heart so happy
@ramonarjona4928
@ramonarjona4928 Місяць тому
Ironwood is, to the best of my knowledge, the wood with the highest Mohs rating and would be worthy of a SciShow.
@rjhrjh3
@rjhrjh3 Місяць тому
My postcard arrived today (in Australia). Thanks for posting it. I agree there are many science channels. Some of them, like ScShow, are good, and some of them are not so good.
@kraneiathedancingdryad6333
@kraneiathedancingdryad6333 Місяць тому
This video rocks 🤘🤘🤘
@onyxianna
@onyxianna Місяць тому
I can't wait until I get a box, even though I should be buying food instead... I have been trying to get one since December. I even stayed up all night long this month. To no avail, and golly was I tired - not like it was like when I stayed up all night as a kid! I REALLY hope the "notify me when available" is some kind of indicator for how many they have for sale, because this is frustration to the extreme. I am very soon going to not want a box, mainly because I feel like I am missing out on my favorites!!
@feedbackzaloop
@feedbackzaloop Місяць тому
After all so many videos people in the arts should have learn already, why science and engineering has particular words for particular qualities and discourages use of synonyms. Hard is hard, tough is tough, strong is strong - simple as that.
@2l84t
@2l84t Місяць тому
Context tends to help.
@nHans
@nHans Місяць тому
Well, to be honest, it's the fault of the mathematicians and scientists. For whatever reason-laziness, lack of imagination-instead of coining new words for new concepts, they just took everyday words from English-which already had certain meanings in everyday usage-and redefined them with a different meaning for use as technical terms. This is why there's so much confusion between technical v. everyday usages of English words. Some examples from math, where technical terms have a very different meaning from everyday English: _real, imaginary, complex, rational, irrational, transcendental, matrix, magma, group, ring, field, map, telephone number._ 🙄 Bad names in physics: _zero gravity, color charge, strong force, weak force, dark matter, dark energy, mass, matter, energy, work, power, relativity, red shift, blue shift._ Also, _sun_ ☀ and _star_ ⭐ mean the same thing? 🤔 Biologists are particularly bad. To them, cucumbers, eggplants, and okra are fruits, while apples, pears, and strawberries are not. Peanuts are not nuts. Spiders are not insects anymore-but they used to be, before biologists confused the heck out of everybody. Law and medicine too imported lots of Latin words into their technical vocabulary. Luckily for them, Latin today is a dead language, so there's relatively less confusion between their technical words and everyday English.
@Napoleonic_S
@Napoleonic_S Місяць тому
@nHans 😂😅 WTF, do us a favor and just try to create new terms for the items that you mentioned, I'm not that picky, try 5 new terms from the ones that you mentioned there across all field of study and even math.
@Baymax872
@Baymax872 Місяць тому
⁠​⁠@@nHansbiologist here: you’re point still stands but all the “fruits” you listed are fruits! Strawberries are not berries though….neither are blackberries or raspberries. My favorite: not only are tomatoes biologically fruit, they are berries!! So are gourds! And cucumbers! Blueberries are one of the few properly labeled fruits. They are blue and they are berries. If you think about, other than taste, size, and color there isn’t much difference between a blueberry and a tomato. Like in terms of biological structures they are extremely similar, that’s why they’re both berries. Blackberries shares pretty much nothing in common with blueberries so they can’t be in the same category. I love playing with semantics!
@vivientakacs5599
@vivientakacs5599 27 днів тому
I have a brilliant crimson jasper ring and as I was listening I got afraid I would scratch it easily. I looked it up on the scale and thankfully, I don't have to be too afraid of scratching it by bumping my hand into everything possible 😅
@EvilSnips
@EvilSnips Місяць тому
I love geology! I actually learned most of this from the anime Land of the Lustrous! But it's nicely summed up here!
@TheMunchkinita2509
@TheMunchkinita2509 Місяць тому
Pretty sure that this video will explain it much better than I can, but I'm commenting before watching to see how wrong (or right! 😅) I am Soo... for almost a decade I worked in jewelry, where the Mohs Scale is often used. If memory serves me correctly, "Hardness" is only used when you're describing how hard it is to scratch the surface of a stone. Considering how much we all use our hands and how expensive jewelry can be, the Mohs Scale is important info to have when you've got pricey precious stones encircling your phalanges. However, if you wanna find out how difficult it is to straight up BREAK said stone for whatever reason, then you need to look up how "Tough" the stone is (Fun fact: Opals are super easy to break. It'd be much safer having an opal used in a pendant instead of a ring.) At least, that's what I was taught. If I'm wrong, please feel free to correct me in the comments about which part I messed up. (Bonus points awarded if you manage to do so in a nice way 😊) Hope everyone had or is having a great day or night :)
@Th3Shrike
@Th3Shrike Місяць тому
now just need to make the next box Aventurine, would go well with Topaz
@dickinsontanner
@dickinsontanner Місяць тому
I like the new set!
@meterfeeder
@meterfeeder Місяць тому
I picture Hank looking at the Rock Box saying, "They're minerals"
@MiniTapp
@MiniTapp Місяць тому
More geology videos please! we love to see representation for our underdog science.
@Otis151
@Otis151 Місяць тому
Nice
@iambiggus
@iambiggus Місяць тому
Red rover red rover, an audio do over.
@ZetaFuzzMachine
@ZetaFuzzMachine Місяць тому
It still sounds weird but still a massive improvement
@donbronson2518
@donbronson2518 Місяць тому
Are we just ignoring that thumbnail😂
@zacharyreid7557
@zacharyreid7557 Місяць тому
deja vu?
@iambiggus
@iambiggus Місяць тому
Audio redux.
@Komandor98
@Komandor98 Місяць тому
yea im getting the same vibes
@dinomaster420
@dinomaster420 Місяць тому
@@VeroTesta fixed the audio
@Sabeteur83
@Sabeteur83 Місяць тому
I know i watched this yesterday lol
@VeroTesta
@VeroTesta Місяць тому
@@dinomaster420 thanks!
@Stepbrohelp
@Stepbrohelp Місяць тому
Yall knew what you were doing with that thumbnail
@jamullin97
@jamullin97 Місяць тому
Audio correction is much appreciated!
@vzxvzvcxasd7109
@vzxvzvcxasd7109 Місяць тому
It's April's fools
@FeeshUnofficial
@FeeshUnofficial Місяць тому
​@@vzxvzvcxasd7109it's april 4th...
@bbbenj
@bbbenj Місяць тому
That rocks!
@triviszla1536
@triviszla1536 Місяць тому
Stefan definitely plays Honkai Star Rail.
@whenthingsfly4283
@whenthingsfly4283 Місяць тому
I'm so confused. Reupload? Perhaps corrections? 🤔
@nebulan
@nebulan Місяць тому
Audio fix yeah
@whenthingsfly4283
@whenthingsfly4283 Місяць тому
​@@nebulantbh I didn't notice a difference, but thanks for letting us know. Would've been a head scratcher otherwise 😹
@isabelab6851
@isabelab6851 Місяць тому
Had the same question
@korg47237
@korg47237 Місяць тому
@@whenthingsfly4283didn't notice a difference? the original sounded like nails on a chalkboard
@vzxvzvcxasd7109
@vzxvzvcxasd7109 Місяць тому
It's probably April fools
@flamingknight11
@flamingknight11 Місяць тому
Huh... Never thought I would watch a Sci-Show video about being rock hard and perfect cleavage, but here we are.
@emyra_3293
@emyra_3293 Місяць тому
LOL
@TemporalOnline
@TemporalOnline Місяць тому
Yeah, yeah, rocks, cool. What are you doing on Thechnology Connections house?
@mattyt1961
@mattyt1961 Місяць тому
but the gutter is a great place to find rocks that have washed down off the mountains.... I think I will stay in the gutter thank you :D
@Mastermindyoung14
@Mastermindyoung14 Місяць тому
Credit to whoever came up with the thumbnail
@trabajaba
@trabajaba Місяць тому
My favorite presenter
@janJosu
@janJosu Місяць тому
I saw this video out of the corner of my eye and thought it was something else.
@FeeshUnofficial
@FeeshUnofficial Місяць тому
Rock and stone!
@LMacNeill
@LMacNeill Місяць тому
The title card said "perfect cleavage," so I immediately clicked on it... Definitely wasn't expecting rocks... 😁😂
@wednesdayPrepper
@wednesdayPrepper Місяць тому
This video almost became a drinking game lol
@dennisestenson7820
@dennisestenson7820 Місяць тому
5:55 that's enough dirty jokes
@Dellvmnyam
@Dellvmnyam Місяць тому
Rock is hard, metal is heavy \m/
@Beryllahawk
@Beryllahawk Місяць тому
Guys, I would LOVE a longer video discussing more of the material properties of pretty rocks. Silly cleavage jokes aside, this is really fascinating!!
@Aragorn7884
@Aragorn7884 Місяць тому
*Juice Robinson.* _IYKYK_ 😅
@Delente.
@Delente. Місяць тому
rock hard!
@Aragorn7884
@Aragorn7884 Місяць тому
@@Delente. 🤘
@SrirachaChugChallenge747-jq7by
@SrirachaChugChallenge747-jq7by Місяць тому
the THUMBNAIL😭😭😭
@gab.lab.martins
@gab.lab.martins Місяць тому
"Topaz has perfect cleavage." Plot twist: Topaz is the work-name of a certain someone Stefan met during a crazy weekend in Vegas.
@katyowens3119
@katyowens3119 Місяць тому
Yesterday’s upload was an April fools joke, to all who are confused.
@AidanRatnage
@AidanRatnage Місяць тому
What's the difference between indentation hardness and compressive stress?
@user-bm6xz6pq5z
@user-bm6xz6pq5z Місяць тому
Is this a reupload? Did you get the strike hammer?
@kryptoniridium
@kryptoniridium Місяць тому
No one: Topaz : ( Y )
@poppyseedsnuranium
@poppyseedsnuranium Місяць тому
So spicey!
@lifeprojects1
@lifeprojects1 Місяць тому
Why so few reference images?
@CommieHunter7
@CommieHunter7 Місяць тому
Well, the thumbnail is accurate in A way.... 🤨
@xanderlurks
@xanderlurks Місяць тому
Cleavage? Geology? I feel a Randy Marsh Episode coming on..
@Tahoza
@Tahoza Місяць тому
Holy crap the magic school bus reference!
@Lodada
@Lodada Місяць тому
Steven Universe fans would love this video
@sugarfrosted2005
@sugarfrosted2005 Місяць тому
Sapphires aren't just blue they're every natural corrundum color that's not red.
@RaeHadzega
@RaeHadzega Місяць тому
Just dropping in to say you should have put a yellow demonetized logo "censoring" the rock But I liked it anyway lol
@Gildedmuse
@Gildedmuse 27 днів тому
Wait, so Sapphire and Ruby were never breaking the rules. They're both Corundum.... You know what I see why they went with Garnet now.
@Falcarious
@Falcarious Місяць тому
is this a set or Stefan's office? lol
@hairytick7882
@hairytick7882 Місяць тому
The rock's cleavage in the thumbnail looks different than it does on WWE
@jacobhertl1398
@jacobhertl1398 Місяць тому
I too make that face when seeing perfect clevage
@grubbybuckets9019
@grubbybuckets9019 Місяць тому
rockshow
@ponyote
@ponyote Місяць тому
Where's Professor Green with his topaz fist?
@3800S1
@3800S1 Місяць тому
You know you're a nerd when you knew the context and definition of cleavage in relation to minerals wayyy before you heard of the other kind 😅
@barrianic4
@barrianic4 Місяць тому
emerald is a type of beryl
@kaizakim4612
@kaizakim4612 Місяць тому
Get the mind out of the gutter and then proceeds tosay Harder, durable, tap,touch,squeeze,etc
@wreckervilla
@wreckervilla Місяць тому
Isn't indentation hardness generally called Brinell hardness?
@rahmanaceville7803
@rahmanaceville7803 Місяць тому
It can be so hard to be the hardest rock that is really hard to break.
@yasinsharb9453
@yasinsharb9453 Місяць тому
Is this the nilered/ nileblue guy?
@gamegamezero7704
@gamegamezero7704 Місяць тому
Geologist must have the best pick up lines.....
@Udink
@Udink Місяць тому
When I noticed the original upload got pulled, I assumed it was because of all the "hard" and "cleavage" puns. Boy, was I disappointed.
@way-13
@way-13 Місяць тому
This was posted yesterday!?!?!
@PeterShipley1
@PeterShipley1 Місяць тому
wow , you figured out how to sell people boxes of rocks.
@Alleged_Mercenary
@Alleged_Mercenary Місяць тому
I saw what you did there...
@BradleyOsborn
@BradleyOsborn Місяць тому
I was expecting décolletage.
@stonerbland7621
@stonerbland7621 Місяць тому
I clicked this for the thumbnail 🥵
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