Answer:
Jade is a name given to two metamorphic ornamental gem stones; nephrite and jadeite. Nephrite is softer than jadite and has less varity of colour. Nephrite varies from white to green, jadeite varies from blue through lavender to an emerald green. Nephrite is more abundant than jadeite which is only found in 11 places in the world. The rarest and historically most sought after jade is a jadeite of translucent emerald green.
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First answer by Mr Slothanator. Last edit by Compendium. Contributor trust: 1133 [recommend contributor recommended]. Question popularity: 2 [recommend question].