PERIDOT FOR SALE

Peridot is a magnesium iron silicate mineral with the basic chemical formula Mg2SiO4. It is a gem variety of the mineral forsterite, and ranges between yellow, olive, to brownish green, much of the time depending on amount of iron present during formation. Dark, olive green colored peridot gems are typically the most sought after. Many gem quality specimens were originally in basalt nodules in the earths mantle, and were fragmented and brought to the surface by volcanic activity.
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58 Items ($25 to $25)