Ah, the persistent calcite vs. quartz debate! So this isn’t a definitive test to determine just ANY clear mineral; there are plenty of clear minerals that would perform differently on this one simple test. But, if someone tells you “hey, this is EITHER a quartz or a calcite, can you tell which?” this is one indicator test. If you want one quick visual test that would help, gemmy calcite is so doubly refractive that it will often show doubled images, but you might have to test it at a few differe
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Ah, the persistent calcite vs. quartz debate! So this isn’t a definitive te…
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I love that little peek of green at the top of the main crystal! The stunning colors you see here, the yellow contrasting with blue, are absolutely a famous color palette for finds from France from several decades ago, the 1980s if I recall. This is a particularly colorful piece because of the saturation of both colors, whereas normally one might be weak, and it is a classic French specimen. Fluorite - Valzerguez, France #fluorite #minerals #fineminerals #mineralsofig #crystals | The Arkenstone
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I love that little peek of green at the top of the main crystal! The stunni…
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