Pyrrhotite with galena, black sphalerite and calcite from Dalnegorsk, Primorsky Krai Region, eastern Russia. There is a crack in the mineral, it has not been repaired. 7.0 x 5.1 x 3.3 cm https://phdminerals.com/Pyrrhotite2
Gemmy pink to red Rhodocrosite scalehedrons sitting on black Manganite from Uchucchacua Mine, Oyon Province, Lima Dept. No damage. Dimension: x x cm
Found in the early this yellow-orange crystallized Orpiment sample comes from the Quiruvilca Mine, Santiago de Chuco Province, La Libertad Dept. Pyrite is present at the base of the sample. No Damage. Size: x x cm
Cassiterite - Viloco Mine, Loayza Prov., La Paz Dept, Bolivia. 8.0 x 4.5 x 4.0 cm https://phdminerals.com/Cassiterite1
Exceptional specimen of Ferberite found in the '80s, with quartz, muscovite, siderite and pyrite from Panasqueira, Portugal. 9.0 x 6.0 x 5.0 cm https://phdminerals.com/Ferberite Ferberite is a black monoclinic mineral composed of iron(II) tungstate. It's chemical formula is FeWO4. You can click on the mineral pictures to enlarge them.
Wardite mineral description, Wardite for sale. Did you ever see Wardite from Rapid Creek Yukon.
Sharp, lustrous crystals of Lazulite in a dark, inky blue color, highlighted by yellow-brown siderite crystals and tufts of clear quartz. The luster on the mirror-like faces is brilliant, and the dark blue crystals contrast nicely with a few groups of qua