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Eurojade - Le Spécialiste du Jade - The Jade Specialist


Chemical composition: a fibrous variety of the amphibole mineral series actinolite to tremolite, usually closer to actinolite.

Colour: green, black, brown, beige (mutton-fat jade). Usually darker and less intense colors than those of jadeite.

R.I. : 1.62.

Hardness: 6-6.5. Extremely tough, except when its composition approaches that of tremolite.

Crystal structure: monoclinic, usually massive.

Specific gravity: 2.9-3.0. 

Sources: many sources, including British Columbia, Chinese Turkestan,Taiwan, New Zealand, Wyoming, Lake Baikal and California