melanotekite

melanotekite

[‚mel·ə·nō′tek‚īt]
(mineralogy)
Pb2Fe2Si2O9 A black or dark-gray mineral composed of lead iron silicate.
References in periodicals archive ?
He identified the yellow iron-rich end member, melanotekite, in specimens from a number of localities in the area (Merehead quarry, Coombe Farm quarry, and Wesley mine), and reported on the identification (by the Natural History Museum, London) of the black manganese-rich end member, kentrolite, in a specimen from the Higher Pitts mine (Kingsbury collection, No.