nephrite
Concise Oxford English Dictionary © 2008 Oxford University Press:
nephrite /ˈnɛfrʌɪt/
▶noun a pale green or white silicate mineral which is one of the forms of jade.
– origin C18: from Ger. Nephrit, from Gk nephros ‘kidney’ (with ref. to its supposed efficacy in treating kidney disease).
'nephrite' also found in these Oxford entries:

