SciShow | Why the Hardest Rocks Can Be Easy to Break @SciShow | Uploaded April 2024 | Updated October 2024, 1 week ago.
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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Support SciShow by becoming a patron on Patreon: patreon.com/scishow
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Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Adam Brainard, Alex Hackman, Ash, Benjamin Carleski, Bryan Cloer, charles george, Chris Mackey, Chris Peters, Christoph Schwanke, Christopher R Boucher, DrakoEsper, Eric Jensen, Friso, Garrett Galloway, Harrison Mills, J. Copen, Jaap Westera, Jason A Saslow, Jeffrey Mckishen, Jeremy Mattern, Kenny Wilson, Kevin Bealer, Kevin Knupp, Lyndsay Brown, Matt Curls, Michelle Dove, Piya Shedden, Rizwan Kassim, Sam Lutfi
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Sources:
Mohs Hardness Scale (U.S. National Park Service).
https://ballarini.cive.uh.edu/wp-content/uploads/2016/06/96.pdf
Topaz | Geoscience Australia
Cleavage of Minerals | Geology In
tandfonline.com/doi/abs/10.5408/1089-9995-55.1.56
The Largest Faceted Gemstones in the World | Geology In
Moh's hardness scale compared to indentation hardness
chemeurope.com/en/encyclopedia/Indentation_hardness.html
minsocam.org/ammin/AM21/AM21_75.pdf
palagems.com/topaz-buying-guide
langantiques.com/university/beryl-2
gemsociety.org/article/topaz-jewelry-and-gemstone-information
https://www.ga.gov.au/education/minerals-energy/australian-mineral-facts/sapphire
Image Sources:
gettyimages.com/detail/video/mans-hand-with-a-hammer-hits-the-rock-stock-footage/1989724380
commons.wikimedia.org/wiki/File:Mohs.jpg
gettyimages.com/detail/photo/large-lunulae-or-half-moon-at-fingernail-with-royalty-free-image/1449865087?phrase=fingernail
gettyimages.com/detail/photo/nail-on-white-royalty-free-image/183295634?phrase=nail
gettyimages.com/detail/video/diamond-loose-image-loopable-stock-footage/473169193
gettyimages.com/detail/video/natural-ruby-gemstone-on-the-turning-table-stock-footage/1314826038
gettyimages.com/detail/photo/blue-sapphir-on-black-coal-background-royalty-free-image/1222335712?phrase=sapphire
gettyimages.com/detail/photo/uncut-imperial-topaz-royalty-free-image/535427664?phrase=topaz
gettyimages.com/detail/photo/macro-mineral-spinel-stone-on-white-background-royalty-free-image/1079170642?phrase=spinel
gettyimages.com/detail/photo/searching-for-stones-mines-and-precious-crystals-in-royalty-free-image/1054936628?phrase=spinel
gettyimages.com/detail/photo/topaz-nestled-in-bedrock-from-mexico-royalty-free-image/1724251277?phrase=topaz+mine
commons.wikimedia.org/wiki/File:Topaz_27.jpg
commons.wikimedia.org/wiki/File:Topaz_NHMLA.png
commons.wikimedia.org/wiki/File:Topaze_Brésil.jpg
commons.wikimedia.org/wiki/File:Topaz_red.jpg
commons.wikimedia.org/wiki/File:Topaz-170679.jpg
gettyimages.com/detail/photo/rough-green-beryl-gemstone-isolated-royalty-free-image/1247698990?phrase=beryl
opentextbc.ca/physicalgeology2ed/chapter/2-6-mineral-properties
nature.com/articles/s41524-021-00608-3
commons.wikimedia.org/wiki/File:Cleavage_planes.png
gettyimages.com/detail/video/topaz-mineral-stone-sample-in-rotation-with-white-stock-footage/1090929656
gettyimages.com/detail/photo/microscope-rock-analysis-royalty-free-image/531323408?phrase=geology+lab
gettyimages.com/detail/photo/diamond-head-pin-and-adjustment-move-up-down-table-royalty-free-image/1339874377?phrase=vickers+test
gettyimages.com/detail/photo/macro-stone-mineral-yellow-topaz-on-a-black-royalty-free-image/1327598545?phrase=topaz
gettyimages.com/detail/photo/pure-quartz-crystal-cluster-on-black-background-royalty-free-image/1446932434?phrase=quartz
gettyimages.com/detail/photo/imperial-topz-crystal-macro-detail-texture-royalty-free-image/1486708321?phrase=topaz
gettyimages.com/detail/photo/set-of-new-rasp-files-on-gray-background-working-royalty-free-image/1322476771?phrase=steel+file
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)
----------
Support SciShow by becoming a patron on Patreon: patreon.com/scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Adam Brainard, Alex Hackman, Ash, Benjamin Carleski, Bryan Cloer, charles george, Chris Mackey, Chris Peters, Christoph Schwanke, Christopher R Boucher, DrakoEsper, Eric Jensen, Friso, Garrett Galloway, Harrison Mills, J. Copen, Jaap Westera, Jason A Saslow, Jeffrey Mckishen, Jeremy Mattern, Kenny Wilson, Kevin Bealer, Kevin Knupp, Lyndsay Brown, Matt Curls, Michelle Dove, Piya Shedden, Rizwan Kassim, Sam Lutfi
----------
Looking for SciShow elsewhere on the internet?
SciShow Tangents Podcast: scishow-tangents.simplecast.com
TikTok: tiktok.com/@scishow
Twitter: twitter.com/scishow
Instagram: instagram.com/thescishow
Facebook: facebook.com/scishow
#SciShow #science #education #learning #complexly
----------
Sources:
Mohs Hardness Scale (U.S. National Park Service).
https://ballarini.cive.uh.edu/wp-content/uploads/2016/06/96.pdf
Topaz | Geoscience Australia
Cleavage of Minerals | Geology In
tandfonline.com/doi/abs/10.5408/1089-9995-55.1.56
The Largest Faceted Gemstones in the World | Geology In
Moh's hardness scale compared to indentation hardness
chemeurope.com/en/encyclopedia/Indentation_hardness.html
minsocam.org/ammin/AM21/AM21_75.pdf
palagems.com/topaz-buying-guide
langantiques.com/university/beryl-2
gemsociety.org/article/topaz-jewelry-and-gemstone-information
https://www.ga.gov.au/education/minerals-energy/australian-mineral-facts/sapphire
Image Sources:
gettyimages.com/detail/video/mans-hand-with-a-hammer-hits-the-rock-stock-footage/1989724380
commons.wikimedia.org/wiki/File:Mohs.jpg
gettyimages.com/detail/photo/large-lunulae-or-half-moon-at-fingernail-with-royalty-free-image/1449865087?phrase=fingernail
gettyimages.com/detail/photo/nail-on-white-royalty-free-image/183295634?phrase=nail
gettyimages.com/detail/video/diamond-loose-image-loopable-stock-footage/473169193
gettyimages.com/detail/video/natural-ruby-gemstone-on-the-turning-table-stock-footage/1314826038
gettyimages.com/detail/photo/blue-sapphir-on-black-coal-background-royalty-free-image/1222335712?phrase=sapphire
gettyimages.com/detail/photo/uncut-imperial-topaz-royalty-free-image/535427664?phrase=topaz
gettyimages.com/detail/photo/macro-mineral-spinel-stone-on-white-background-royalty-free-image/1079170642?phrase=spinel
gettyimages.com/detail/photo/searching-for-stones-mines-and-precious-crystals-in-royalty-free-image/1054936628?phrase=spinel
gettyimages.com/detail/photo/topaz-nestled-in-bedrock-from-mexico-royalty-free-image/1724251277?phrase=topaz+mine
commons.wikimedia.org/wiki/File:Topaz_27.jpg
commons.wikimedia.org/wiki/File:Topaz_NHMLA.png
commons.wikimedia.org/wiki/File:Topaze_Brésil.jpg
commons.wikimedia.org/wiki/File:Topaz_red.jpg
commons.wikimedia.org/wiki/File:Topaz-170679.jpg
gettyimages.com/detail/photo/rough-green-beryl-gemstone-isolated-royalty-free-image/1247698990?phrase=beryl
opentextbc.ca/physicalgeology2ed/chapter/2-6-mineral-properties
nature.com/articles/s41524-021-00608-3
commons.wikimedia.org/wiki/File:Cleavage_planes.png
gettyimages.com/detail/video/topaz-mineral-stone-sample-in-rotation-with-white-stock-footage/1090929656
gettyimages.com/detail/photo/microscope-rock-analysis-royalty-free-image/531323408?phrase=geology+lab
gettyimages.com/detail/photo/diamond-head-pin-and-adjustment-move-up-down-table-royalty-free-image/1339874377?phrase=vickers+test
gettyimages.com/detail/photo/macro-stone-mineral-yellow-topaz-on-a-black-royalty-free-image/1327598545?phrase=topaz
gettyimages.com/detail/photo/pure-quartz-crystal-cluster-on-black-background-royalty-free-image/1446932434?phrase=quartz
gettyimages.com/detail/photo/imperial-topz-crystal-macro-detail-texture-royalty-free-image/1486708321?phrase=topaz
gettyimages.com/detail/photo/set-of-new-rasp-files-on-gray-background-working-royalty-free-image/1322476771?phrase=steel+file
