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solid

a mineral is always this because it has a definite volume and shape

metals

minerals that can be stretched, hammered, or molded without breaking

gem

a gemstone that is cut and polished

sand

the most common source of quartz used in making glass

streak

the powder form of a mineral left behind when rubbed on a streak plate

element

occurs in nature in a pure form, gold is an example

crystallization

the process by which atoms are arranged to from a material with a crystal shape

talc

talcum powder is made from this soft mineral

magma

located below earth's surface, cools and hardens to forms mineral crystals

compounds

when two elements combine, most minerals are these

ores

rocks that contain a useful mineral that can be mines and sold at a profit

luster

how light is reflected from a minerals surface

halite

a mineral formed by evaporation

shaft

a type of mine that has a network of tunnels that extend deep into the ground, following the veins of ore

open pit mining

in this process miners must use earth moving equipment to dig a huge hole

diamond

the hardest known mineral

crystal

the repeating pattern of a mineral's particles forms a solid called

smelting

the process that removed the metal from the ore

gemstone

a hard, colorful mineral that has a brilliant or glassy luster

vein

a narrow channel or slab of a mineral that is different from the surrounding rock

inorganic

does not come from the remains of plants or animals

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