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Thaumasite - N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa (#:MINS8135)

Rare pale yellow Thaumasite Crystal 8 mm tall, gemmy and fully terminated.

Formula :
Ca₃[CO₃/SO₄/Si(OH)₆] * 12 H₂O
System: hexagonal Hardness:3½ Rarity:not common
Strunz id:VIII/B.22-90 - SILICATES
Name origin: From Greek, θαυµαζειν (thaumazein), to be surprised, alluding to its unusual composition with carbonate, sulphate and hexahydroxysilicate anions. First described by Nordenskiöld (1878)

Specimen weight:1 gr.

Crystal size:5x5x8

Overall size: 5mm x 5 mm x 8 mm

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Thaumasite - N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa

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