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| 1.
What common, pale yellow, metallic mineral has a greenish black streak and is used as a source of the mineral sulfur? |
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| 2.
Which native element, noted for its high specific gravity and metallic luster, is noted for its yellow color? |
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| 3.
What type of coal has a fixed carbon content of around 90 to 95 percent? |
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| 4.
What extremely common silicate mineral has a hardness of 7 on the Mohs scale and is most often found as well-formed crystals belonging to the hexagonal system? |
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| 5.
From which other native mineral can arsenic be identified by its garlicky odor? |
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| 6.
What type of rock is granite? |
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| 7.
Which mineral has perfect cleavage in six directions? |
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| 8.
Marble is composed of only one of two possible minerals. What are they? |
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| 9.
What is the color of malachite? |
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| 10.
To what crystal system do the crystals of magnetite belong? |
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