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How do calcite and quartz differ?

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Quartz and calcite are common minerals in the rocks around the world. Both minerals form in a variety of colors, such as purple, white, brown, gray and colorless, which at times makes them appear similar. read more

While calcite has a luster that is vitreous to resinous to dull, quartz has a glassy to vitreous luster. 8. Calcite comes in colourless, white and with light shades of orange, yellow, blue, red, pink, brown, black, green and gray. read more

A piece of quartz can scratch a sample of calcite, but calcite cannot scratch quartz. If you have a sample if each, try to scratch one sample with the other to observe the difference in the hardness. You also can test the hardness of these two minerals using a pocketknife. The blade of the knife has a hardness value between calcite and quartz. read more

Calcite and quartz are highly abundant minerals on the earth surface. Both are present in all three types of rocks named as sedimentary, igneous and metamorphic rocks. Although they are highly available, they are valuable due to their significant differences in color, shape, properties, etc. read more

In hardness , there are differences between the two. Quartz has a hardness of 7 on Moh’s scale whereas Calcite Marble comes with a hardness of 3 on the scale. In refractive indices, Calcite has a refractive index of 1.49 and 1.66. On the contrary, Quartz has a refractive index of 1.55. read more

Calcite vs Quartz Calcite and quartz are highly abundant minerals on the earth surface. Both are present in all three types of rocks named as sedimentary, igneous and metamorphic rocks. read more

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