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RM3632   Andradite, melanite variety
Ca3Fe3+2(SiO4)3
  -  9. Silicates

An amazing specimen of andradite, a variety of melanite, formed by numerous, well-defined idiomorphic crystals, with dodecahedron faces truncated by trapezohedron faces. They are lustrous and exhibit greenish reflections and transparencies when light hits them. They are arranged in a highly contrasting manner on a light-colored matrix.

Size: 10.4 x 9.3 x 4.5 cm.
Main crystal: 26 mm.
Classic locality
250 €