ESCI 211 Physical Geology
Review for Quiz 2
Quiz is on Wednesday, Oct. 2.

You should be able to:

· test the hardness of a mineral;
· identify the color of the streak of a mineral;
· identify these minerals: native sulfur, galena, pyrite, hematite, magnetite, halite, calcite, gypsum, quartz, muscovite mica, biotite mica, alkali feldspar and plagioclase feldspar;
· identify the mafic silicate minerals hornblende and augite (although for this exam you do not need to distinguish between them - in other words, if you can tell me "I know this mineral is either hornblende or augite," that will be good enough for now);
· know which rock is most representative of continental crust, and which rock is most representative of oceanic crust;
· describe the 3 major categories or types of rocks, and be able to look at a rock sample and categorize it into one of these types;
· describe the rock cycle;
· identify these rocks:  basalt, gabbro, granite, rhyolite, pumice, scoria, obsidian, and pegmatite;
· define "mafic" and "felsic," and know which of the major rock-forming minerals are mafic and which are felsic;
· explain what "color index" is;
· explain how magma forms;
· relate the different ways magma can form to plate tectonic settings and processes.