Nephrite

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Nephrite and Jadeite are the only two rocks that can be name as Jade.

 

Nephrite is a magnesium-rich amphibole [any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals].  Nephrite can also contain minor amounts of Apatite, Chromite, Datolite, Diopside, Grossularitic Garnet, Graphite, Magnetite, Prehnite, Pyrite, Rutile, Serpentine Polymorphs, Talc, Titanite, and Vesuvianite.