Peruvian Green Jade (Nephrite)

Nephrite is a type of jade. Jade can refer to either of two different silicate minerals: nephrite (a silicate of calcium and magnesium) or jadeite.

Nephrite consists of a microcrystalline interlocking fibrous matrix of minerals rich in calcium, magnesium and iron tremolite. The higher the iron content, the greener the color.

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