Stuck on a problem? Get great tutoring at an affordable price with Chegg. Click here to join and get your 1st 30 minutes Free!


From Biology-Online Dictionary
Jump to: navigation, search


(Science: chemical) A mineral occurring as an aggregation of minute scales having an olive-green colour and pearly luster. It is a hydrous silicate of aluminia and iron.

Origin: From Thuringia, where it is found.