Definition of idocrase
: a mineral that is a complex silicate especially of calcium, magnesium, iron, and aluminum
Origin of idocrase
French, from Greek eidos form + krasis mixture, from kerannynai to mix — more at crater
First Known Use: 1804
Learn More about idocrase
Britannica.com: Encyclopedia article about "idocrase"
Seen and Heard
What made you want to look up idocrase? Please tell us where you read or heard it (including the quote, if possible).