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Effenbergite - Wessels Mine, Hotazel, Kalahari manganese field, Northern Cape, South Africa (TL)
(#:MINS8271)
Tetragonal plates of blue Effenbergerite, in parts free standingon colorless quartz with sugilite in association from the skarn stage strata of the central eastern orebody.Ex. Sandro Maggia coll., type locality.
Formula :
BaCu[Si
4
O
10
]
System:
tetragonal
Hardness:
4
Rarity:
very rare
Strunz id:VIII/H.1-60 - SILICATES
Name origin:
Named after Prof. Dr. Herta S. Effenberger, mineralogist and crystallographer of the University of Vienna.
Specimen weight:64 gr.
Crystal size:Uo to 3-4 mm
Overall size: 45mm x 38 mm x 20 mm
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