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Feldspars are a group of rock-forming aluminium tectosilicate minerals
which may contain iron oxide
a silicate of calcium and magnesium -- from western Canada
The term “fluorescent” was inspired by Fluorite
originally from the Lapis to Lazuli mine in Afghanistan
Black Rutilated Quartz 4mm Micofaceted Round - 15-16 Inch Stone Type_Angelite Feldspars are a group ofRutilated Quartz is a silicon dioxide mineral with unique needle like inclusions of Rutile. These needles usually appear golden, but can also appear silver, red, copper, or black and can be distributed randomly or in bundles or star like formations. Rutile is the mineral name for natural crystals of titanium dioxide, which may contain iron oxide. When the level of iron oxide is high, the inclusions appear more golden or copper, when it is low, they
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