0204 Nifontovite, Rey y Reina Mine (King and Queen Mine), Charcas, Mun. de Charcas, San Luis Potosi, Mexico
From the 16/200 Level. Glassy, transparent xls on matrix. Best with 10-20x. Collected by Michael Shannon January, 2010
0202 Corrensite, Chabazite, Stilbite, Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery Co., Pennsylvania
Tiny brown xls of this clay mineral coating chabazite rhombs with stilbite xls. Best with 30-40x
0182 Cinnabar, New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California
Multiple single crystals on matrix. Ex Paul Desautels, ex Delbert. L. Oswald Coll.
0178 Iridosmine, California, USA
Mounted on disk (5mm) on balsa pedestal in micromount box (2.2 x 2.2 x 2.0 cm) a specimen of multiple small nuggets. Ex Delbert L. Oswald. Ex Carnegie Museum #12327. Ex George English and Co.
0176 Boulangerite, Quartz, Rhodochrosite, Hercules Mine, Williamsford, Tasmania
Identification confirmed by Jim Sharpe (XRD)
0155 Platinum, Antioquia, Brazil
Multiple small nuggets on small (5mm) disk on balsa pedastal. Ex Delbert L. Oswald. Ex Carnegie Museum #12324. Note that Antioquia is in Colombia, nowhere near Brazil, and with no record of platinum.
0154 Iridosmine, California, USA
Mounted on disk (5mm) on balsa pedestal in micromount box (2.2 x 2.2 x 2.0 cm) a specimen of multiple small nuggets. Ex Delbert L. Oswald. Ex Carnegie Museum #12327. Ex George English and Co.
0153 Platinum, Antioquia, Brazil
Multiple small nuggets on small (5mm) disk on balsa pedastal. Ex Delbert L. Oswald. Ex Carnegie Museum #12324. Note that Antioquia is in Colombia, nowhere near Brazil, and with no record of platinum.
0150 Rutile, Quartz (Amethyst), Entia Valley, Harts Ranges, Northern Territory
Rutile inclusions, quartz sceptre
0138 Goethite, Quartz, Mooralla, Victoria
Golden brown spray of goethite on quartz. Width of view 11.5mm. Stack of 56 images. Click on the image below for a higher resolution version.
0112 Stromeyerite, Chalcocite, Prince Lyell Mine, Mount Lyell Mines, Queenstown district, Tasmania
Massive grey-metallic Stromeyerite inter grown with some Chalcocite. Old specimens collect around 1960. Ex Bergakedemie in Freiberg (Freiberg University of Mining and Technology). Reanalysed by Gunnar Farber. Analysis: At% S K 30.15 AgL 30.62 FeK 3.73 CuK 35.51
0097 Stannite, Pyrite, Mt Bischoff mine, Waratah, Waratah district, Tasmania
Massive crystal aggregates of an Indium-rich Stannite, together with minor Pyrite. Very old specimens, collect around 1900. Ex Bergakedemie in Freiberg (Freiberg University of Mining and Technology). Reanalysed by Gunnar Farber. Analysis: At% S K 44.86 InL 1.13 SnL 12.03 FeK 13.40 CuK 28.57
0096 Shigaite, Gageite, N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
Golden hexagonal plates of shigaite on greyish-white fibrous gageite. Collected 1993.
0095 Zemannite, Moctezuma Mine (Bambolla Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico
Large prismatic yellow crystals of zemannite in quartz vugh