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vocab & questions

streak The color of a mineral may very, but the color of its___________ does not.
luster Minerals have either metallic or nonmetallic _____________.
Moh's scale Hardness is measured on the ______________________.
gem A cut diamond is an example of a precious ____________.
fractures Minerals that break to form curved surfaces and jagged edges have _____________.
cleavage When a mineral breaks along flat planes, it has ______________.
Ores Metals are separated from minerals called ________________.
specific gravity The density of different minerals may be compared by mearsuring their ___________________.
Gems are rare and valuable. They are cut and polished by humans. Crystals are not rare and are formed naturally. What is similar and differnt between gems and crystals?
Created by: tijackson