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Genthelvita con Calcita y Clorita.

Genthelvita con Calcita y Clorita.

Epistilbite, Heulandite, Stilbite, Apophyllite, Quartz - Jalgaon District, Maharashtra, India.

Epistilbite, Heulandite, Stilbite, Apophyllite, Quartz - Jalgaon District, Maharashtra, India.

Helvine and Quartz  - - 	 Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Ulanhad (Chifeng), Inner Mongolia Autonomous Region, China	  	 Plate of translucent white quartz needles, at the ends of which have developed stacks of polysynthetic tetrahedrons of very brilliant brown helvite

Helvine and Quartz - - Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Ulanhad (Chifeng), Inner Mongolia Autonomous Region, China Plate of translucent white quartz needles, at the ends of which have developed stacks of polysynthetic tetrahedrons of very brilliant brown helvite

Cuprite (cubic) in Quartz cast with Plancheite (Shangulowe Mine, Kambove, Katanga (Shaba), Democratic Republic of Congo)

Cuprite (cubic) in Quartz cast with Plancheite (Shangulowe Mine, Kambove, Katanga (Shaba), Democratic Republic of Congo)

Zektzerite

Zektzerite

Superb specimen of the very scarce mineral Covellite. This mineral is becoming almost impossible to find in high-quality bladed form but this piece has it all—iridescent blades cover the top portion of the 9.5 cm tall matrix, above some Quartz xls and Pyrite. This specimen is from the Leonard Mine in Butte, Montana

Superb specimen of the very scarce mineral Covellite. This mineral is becoming almost impossible to find in high-quality bladed form but this piece has it all—iridescent blades cover the top portion of the 9.5 cm tall matrix, above some Quartz xls and Pyrite. This specimen is from the Leonard Mine in Butte, Montana

Genthelvite from Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada [db_pics/mdpics/MD-20246a.jpg]

Genthelvite from Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada [db_pics/mdpics/MD-20246a.jpg]

DT multi-colored Tourmaline - Skardu District, Baltistan, Pakistan

DT multi-colored Tourmaline - Skardu District, Baltistan, Pakistan

Genthelvite, Zn4Be3(SiO4)3S, China

Genthelvite, Zn4Be3(SiO4)3S, China

Helvine-Genthelvite, Quartz and Calcite - Huanggang Mines, Inner Mongolia Autonomous Region China

Helvine-Genthelvite, Quartz and Calcite - Huanggang Mines, Inner Mongolia Autonomous Region China

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