Chapter #1 Chapter #1 Chapter #1 Chapter #1 Chapter #1 A B C D E 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Open pits, quarries, and some coal mines are called this What is a Surface mine? This is used to make electronic equipment and aircraft parts What are metallic minerals? This is used to make concrete and glass products What are nonmetallic minerals? These are formed by changes in pressure, temperature, or chemical makeup What are metamorphic rocks? These are large, tear-shaped bodies of magma where many gemstones can form What are pegmatites? This is the special property of calcite that causes a double image What is an optic property? What is the special property of some minerals to attract iron What is magnetism? What is the special property that some minerals show when they come in contact with acids What is a chemical reaction? What is the special property of some minerals that can be detected by a Geiger counter What is radioactivity? What is the special property that causes some minerals to glow under ultraviolet light What is fluorescence? These are naturally formed, inorganic solids with a definite crystalline structure What is a mineral? What is the tendency of some minerals to break along smooth, flat surfaces What is cleavage? A natural mineral deposit that is large enough and pure enough to be mined for profit What is ore? This is the ratio of mass to volume of a substance What is density? This is the way a surface reflects light What is luster? A mineralвЂ™s resistance to being scratched What is the mineralвЂ™s hardness? The tendency of a mineral to break along a curved surface What is fracture? A mineral deposit that is large enough and pure enough to be mined is called this What is ore? These are open pit mines and quarry mines What are surface mines? This is the name for nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness What are gemstones? Other than reclamation what is another way to reduce the effects of mining on the environment What is recycling mineral? This is the color of the powder that a mineral leaves on a piece of white, unglazed porcelain What is the streak? Silicate and nonsilicate minerals are grouped based on this What is chemical composition? A silicate mineral contains this What is silicon and oxygen? A class of nonsilicate minerals is this What are native elements, carbonated , halides, oxides, sulfates or sulfides?