Melanite

UNB-2017-0019Minerals

Description

Numerous small euhedral trapezohedrons of black Melanite crystals with a vitreous lustre. Average size of crystal: 0.3 cm x 0.1 cm x 0.1 cm. Andradite (Ca3Fe2Si3O12) is a calcium silicate of the Garnet group. Andradite has a variety different colours and when it is black it is known as Melanite. Lustre is vitreous and streak is colourless. Garnet is found usually as dodecahedrons or trapezohedrons but can also be granular, lamellar, compact or disseminated.

Specifications

Object nameMelanite
IDUNB-2017-0019
Legal statusPermanent collection
CategoryMineral
OriginSan Benito County, California, U.S.A.
Pieces1
PartialNo
Measurements
  • 3.5cm x 8.5cm x 4cm

Map of Origin

Publications

  • Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.