OK.... i need serious help with science..Were studying rocks and were doing a rock collection and i need to know .....Is the rock Quartz, an intrusive rock or an extrusive rock? AND ....Is Quartz coarse-grained or fine-grained?......THANKS SOO MUCH!!!!
2007-11-25 06:30:58 · 2 answers · asked by LindonRose 2 in Science & Mathematics ➔ Botany
Rocks rich in quartz are intrusive up to a certain percent. So yes they are generally considered intrusive. Quartz can be either coarse or fine-grained.
2007-11-25 06:42:12 · answer #1 · answered by Dr. Roberts 1 · 0⤊ 0⤋
Distinguish between a mineral and a rock.
Quartz is a MINERAL found in some ROCKS.
The words intrusive and extrusive usually refer to igneous
rocks .
You're in the wrong category; re-ask your question in "geology".
2007-11-27 01:43:52 · answer #2 · answered by ursaitaliano70 7 · 0⤊ 0⤋