crystalline quartz

What Is The Easiest Way To Tell The Difference Between Quartz And Feldspar?

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What Is The Easiest Way To Tell The Difference Between Quartz And Feldspar? Explain Since both quartz and feldspar are considered hard and would scratch glass after a hardness test, you can tell the difference by the mineral’s cleavage. Quartz has poor or absent cleavage, while feldspar has excellent or good cleavage. How do you

What Are Quartz Different Colors?

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What Are Quartz Different Colors? Rock crystal is white, citrine yellow, amethyst purple and rose quartz is pink. Brown or green transparent varieties are also available. One variety, ametrine, is part purple and part yellow. What is the rarest quartz color? This, however, is the rarest form of blue quartz, and there is also a