Chemistry, 01.10.2019 00:40, AT3P

Identify the following as mineral or ore:

a) it is always made up of the same chemical element or elements.

b) it contains crystals of a specific shape.

c) it is the primary product of mining.

d) it is rock containing elements to be extracted.

e) it leaves a characteristic streak when rubbed against a plate of unglazed porcelain.

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Identify the following as mineral or ore:

a) it is always made up of the same chemical...