Ancient Jade Museum

Jadeite & Nephrite

Modern mineralogy defines jade in two categories, Jadeite and Nephrite.

Jadeite

Composition : pyroxene silicate of sodium and aluminium.

Colours : various grays of greens, whites and pinks.

Mohs scale (hardness) : 6.5-7

    Nephrite  

Composition : amphibole silicate of calcium, magnesium and iron.

Colours : white, yellow, blue-green, green and black.

Mohs scale (hardness) : 6-6.5

 

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