Answer:
1. True.
2. A: Only a few minerals always have their own unique color.
Explanation:
1. Coal is not a mineral because it doesn't qualify to be one. A mineral is made of rocks, Coal, however is non-living and made up of atoms of elements.
2. Color can be higly variable when identifying minerals because certain rocks could occur in a different color probably because of impurities in the chemical makeup of the mineral.
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