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Aragonite var. Tarnowitzite, Tsumeb mine, Tsumeb, Otjikot, Namibia (#:MINS8656)

Rare and nice tarnowitzite crystals up to 1,5 cm wide on matrix.

Formula :
Ca12Al2[Si6O17]3 * 18 H2O

System: monoclinic Hardness:5 Rarity:rare
Strunz id:VIII/F.21-40 - SILICATES
Name origin: From Gaelic "tacharan", a changeling, because the mineral breaks down into other compounds if left standing in air.

Specimen weight:230 gr.
Crystal size:Up to 1,5 cm
Overall size: 70mm x 60 mm x 50 mm

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Aragonite var. Tarnowitzite, Tsumeb mine, Tsumeb, Otjikot, Namibia

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