Test your rock & mineral smarts—are you a Rock Star? Think you know rocks and minerals? Take the Science Trek quiz! Test your smarts on gold, salt, Earth’s oldest rocks, gemstones on Mars, and the ...
Feldspar is the name of a group of rock-forming minerals which make up as much as 60% of the Earth's crust. Feldspars crystallize from magma in both intrusive and extrusive rocks, and they can also ...
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!966004~!0#focus ...
Southern Arizona has numerous sites known for their pyroxene minerals, from Twin Buttes south of Tucson, to Ajo, to the Chiricahua, Santa Rita and Patagonia mountain ranges. Pyroxenes are classified ...
I am a mineralogist/crystallographer who studies the crystal structures of rock-forming minerals that are significant constituents of the Earth. My research focuses ...
Some rocks are very common on earth. Large portions of the continents consist for example of granite and basalt covers almost all of the oceanic crust. Other rocks are formed only when very specific ...
Volumes 2B, 3B published by The Geological Society; London, 1997. Volume 5A published by The Geological Society; London, 2011. v. 1A. Orthosilicates -- v. 1B. Disilicates and ring silicates -- v. 2A.
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