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