Smoky Quartz Mini-Cluster - Brazil Mepygurus marmonti dates back to

Mepygurus marmonti dates back to the Late Jurassic Period

Khenifra Province

this mineral is a calcium carbonate mineral with inclusions of manganese and arsenic

Cr)₂(Si₃AlO₁₀ )(OH)₂

Amethyst is a variation of quartz that contains trace amounts of iron

Smoky Quartz Mini-Cluster - Brazil Mepygurus marmonti dates back toHere is another great example of smoky quartz. All three quartz points contain various hues of gray brown. The points of this specimen look as if they are dancing with each other. It would serve as a great addition to any collection. Smoky Quartz is a brown gray yellow variety of quartz that contains aluminum impurities that are naturally irradiated by the Earth. This is the same process that occurs to form amethyst, but with a different metal. Its