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1
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Some minerals form in the Earth's __________________.
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2
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The mineral ________________ is made of copper and oxygen.
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3
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___________ hardness scale lists minerals that have a hardness from 1 to 10.
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4
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The sparkling appearance of a diamond is called ______________ _____________.
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8
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___________ has a grey streak.
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9
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_________ plays a role in forming minerals.
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11
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_________ describes the way the surface of minerals reflect light.
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12
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Sparkling crystals are called __________________.
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16
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___________ is the color of the powder left behind when you rub a mineral against a white tile called a streak plate.
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17
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A _________ is always a solid material with partcles arranged in a repeating pattern.
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