Sphalerite is a zinc sulphide and is best known in the mineral world as the chief ore of zinc. Most sphalerite contains iron and when the iron content is high it is an opaque black. The rare gem-quality crystals have a very low iron content and considerable transparency. They are typically a yellowish to honey brown, red to orange, or green.
What are some of the properties of Sphalerite Gemstones?
In fact its dispersion rating is three times as high as that for diamond But sphalerite is a relatively soft gem, with a hardness of only 3.5 to 4 on the Mohs scale; about the same as fluorite.
What are good ways to use Sphalerite Gemstones?
Because this is a collectors gemstone and is so soft, it is best to wear this stone delicately and in a protective setting.
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