Saturday, June 4, 2011

Legrandite and Adamite from the famous Ojuela Mine in Mapimi, Durango Mexico, and of quartz... many more



Monoclinic prismatic Legrandite crystals with Limonite matrix From the Ojuela Mine in Mapimi, Durango, Mexico - Zn2(AsO4)(OH)•(H2O) - Named after the Belgian mining engineer, Legrande.





Trigonal hexagonal scalenohedral Rhodochrosite in cluster on Quartz crystals from the Hedgehog Pocket, Main Stope Drift, Sweet Home Mine, Alma, Colorado - MnCO3 - From the Greek rhodon -"rose" and chroma - "color."




Hexagonal dihexagonal dipyramidal Beryl var. Aquamarine crystal with tourmaline Schorl rom the Erongo Mine, Namibia, SW Africa - Be3Al2Si6O18 - From the ancient Greek, beryllos, signifying a "precious blue-green color of sea water" stone.




Orthorhombic dipyramidal Barite crystal on reddish Hematite & Dolomite covered matrix from Frizington, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England - BaSO4 - From the Greek, baryos, "heavy."




Trigonal ditrigonal pyramidal Pyrargyrite crystals on top of Calcite rhombs from the Samson Mine, St. Andreasberg, Harz, Germany - Ag3SbS3 - From the Samson Mine, St. Andreasberg, Harz, Germany. From the Greek, pyr and argyros, "fire-silver" in allusion to color and silver content.




Orthorhombic dipyramidal Forsterite var. Peridot on Magnetite from Sapat Gali, Naran-Kagan Valley, Kohistan District, North-West Frontier Province, Pakistan - Mg2(SiO4) -
Named for Johann Forster, German naturalist.





Orthorhombic dipyramidal Adamite clusters on Limonite from the Ojuela Mine, Mapimí, Durango, Mexico - Zn2(AsO4)(OH) - Named after the French mineralogist Gilbert Joseph Adam (1795-1881).


No comments: