Rocks & Minerals B/C ID/Question Marathon

Test your knowledge of various Science Olympiad events
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darkdeserthighway
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Re: Rocks & Minerals B/C ID/Question Marathon

Postby darkdeserthighway » Sun Jul 27, 2014 12:55 pm

John Richardsim wrote:
Answer
1. Talc 2. Gypsum 3. Calcite 4. Flourite 5. Apatite 6. Orthoclase 7. Quartz 8. Topaz 9.Corundum 10. Diamond


What is drusy crystal habit?


Answer
Crystals forming in a vug/ gap in surface of rock
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Re: Rocks & Minerals B/C ID/Question Marathon

Postby John Richardsim » Mon Jul 28, 2014 5:45 pm

Alright, I'm just going to go all out rebel and ask another fossils question.

How and when were banded iron formations (BIFs) formed? (Hint: the answer can be found on this page if you scroll down a little bit: http://petrifiedwoodmuseum.org/Precambrian.htm)
Si Quaeris Peninsulam Amoenam Circumspice

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Re: Rocks & Minerals B/C ID/Question Marathon

Postby GoofyFoofer » Fri Aug 08, 2014 5:26 pm

:)
Banded iron formations, known as BIF's, are ancient sedimentary deposits consisting of alternating layers of iron rich and silica rich layers. BIF's started out as sediments deposited on ancient ocean floors.
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Re: Rocks & Minerals B/C ID/Question Marathon

Postby GoofyFoofer » Thu Aug 14, 2014 6:43 pm

Fossils Question!!! :P
What is the most recognizable feature of genus Phacops?
[Hint: it is a trilobite...]
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