Image Credit: Malcolm Southwood
Specimen Title
Dioptase
Associated Minerals
calcite
Principal Mineral
Size
Cabinet; 66mm
Location in the Mine
Second oxidation zone
Provenance
Zweibel, J.; Loomis, L. & E.
Collection
MGMH; 2024.5.503
Entry Number
Specimen; TSNB673
Associated Minerals
calcite
Description
A crescent-shaped plate of white calcite almost completely encrusted on both sides by lustrous, highly translucent, equant dioptase crystals (to 2 mm).
The specimen is from the collection of Lynn and Elaine Loomis which was acquired by Harvard in 2024. It is accompanied by a Mineral Kingdom of Woodmere label (Julius and Miriam Zweibel) which dates it to pre-1980. While the location in the mine is not recorded, the paragenesis and habit are definitive for the second oxidation zone.
