A hard compact mineral, of a dark green color, formerly worn as a remedy for diseases of the kidneys, whence its name; kidney stone; a kind of jade. It varies in color from white to dark green. It is the more common and less valuable variety of jade, the other being jadeite. Large deposits are found in Australia. Called also nephritic stone. See also Jade.
A hard fibrous green to white rock often used for the manufacture of adze-blades. Commonly called jade.
The mineral jade, in the narrowest sense - an old charm against kidney disease. - (Chambers, 849.) Nephrite Ca2(Mg,Fe)5Si8O22(OH,F)2 occurrs in New Zealand, Central Asia, Siberia, and parts of North America.
an amphibole mineral consisting of calcium magnesium silicate in monoclinic crystalline form; a source of jade that is less valuable than from jadeite; once believed to cure kidney disorders
A compact tremolite or actinolite (minerals) that is the more common and less valuable kind of jade; varies in color from white to dark green or black.
Nephrite is a semi-precious stone, a variety of jade (sometimes called greenstone). Two different minerals are known as jade, jadeite and nephrite. Nephrite is slightly softer that jadeite and is often veined; it is used in carvings and for making beautiful bowls and vases.
The original jade treasured by the Chinese culture, nephrite is a calcium magnesium silicate and comes in a range of colors from white to green. The composition of nephrite is fibrous, making it one of the “toughest†materials on earth. (See Jade Facts.)
A form of jade, appearing in darker shades of green, that was originally found and used in China.
A hard type of jade with colours ranging from white to dark green and grey or brown to black
A hard type of jade with colors ranging from white to dark green and shades of gray or brown to black.
a type of jade, a silicate of calcium and either magnesium or iron, varying in color from white to dark green. [AHDOS
A compact variety of tremolite and a form of jade. Often called "greenstone" though it can also be found in shades of grey, brown, and black.
Nephrite is a variety of the calcium and magnesium rich amphibole mineral actinolite (aggregates of which also make up one form of asbestos). The chemical formula for nephrite is Ca2(Mg,Fe)5Si8O22(OH)2.(Gia), Gemological. Gem Reference Guide.