Rebecca Zemans Jewelry Blog — nephrite
Jade - Stone of the Month
One of the birthstones for the month of August is jade, a stone often known for its intense green color. Jade has been known for more than 7000 years, and while one might assume it has mainly been used in ornaments, it started out as a very practical stone used for tools because of its extreme toughness. Jade consists of two separate minerals known as jadeite and nephrite. Jadeite is very tough and resistant because of its tight growth of tiny interlocking grains. Nephrite, a variety of the mineral actinolite, is even tougher, due to its composition of fibrous crystals...