The option that is not a true statement about minerals is that the primary mineral that can be identified by its reaction to acid is calcite.
It should be noted that minerals are the natural resources that can be found in the ground.
In this case, when a mineral only comes in one or two colors, color would be a good characteristic to classify that mineral.
If a mineral occurs in a rainbow of colors, color would be a good characteristic to classify that mineral. Granite likely contains quartz and feldspar minerals. Quartz has a hardness of 7 on the Moh's Hardness Scale and it will scratch apatite and orthoclase.
Therefore, the option that is not a true statement about minerals is that the primary mineral that can be identified by its reaction to acid is calcite.
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