Scioly.org

XXGeneration wrote:

iYOA wrote:revive!!

Question 12 (Click to Show Hidden Text)

[img]http://webmineral.com/specimens/photos/Albite1Small.jpg[/img]
a)Identify it
b) Chemical composition?

The picture isn't loading for me.. and I just saw the link when quoting :X

whoops sorry I guess I'll sit out this one

You can still answer if you want as long as you explain why the id makes sense because this marathon is dying

well, biotite is typically a very dark color and it doesnt occur fanned out like in the image. so try again

How do I hide an answer?

you click on the hide button should get:
[hide][/hide]

then follow this format
[ hide] Name of the button | text that is supposed to be hidden [/hide ]

note that i put a space between the first bracket and the h and a space between the very last bracket and the e so that it wouldnt actually hide

To revive this thread.. Here is an easy one. which rock is this? And what type of rock?

XXGeneration wrote:

Answer? (Click to Show Hidden Text)

Andesite? It would be an igneous rock if it were andesite.

You got the igneous part right! But the rock name is wrong.
EDIT: Here's a hint: The mineral assemblage is usually quartz, alkali feldspar and plagioclase.

from the description, maybe a rhyolite?

quizbowl wrote:from the description, maybe a rhyolite?

Yes! Your turn.