0383 Iranite, Evening Star Mine, Tiger Wash, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA
Dark brown crystals of iranite. Width of view 5.75mm. Stack of 38 images. Click on the image below for a higher resolution version.
United States
2290 Scheelite, Quartz, Ophir Hill Consolidated Mine, Ophir, Ophir Mining District, Tooele County, Utah, USA
Yellow crystals of scheelite on quartz. The scheelite fluoresces bluish-white under shortwave UV. Minor sulphides also present. Width of view 11.5mm. Stack of 25 images (white light), and 31 images (Shortwave UV). Click on the images below for a higher resolution version.
ncat JP1547, Scheelite, Quartz, Ophir Hill Consolidated Mine (Montana Mine; Ophir Coalition Mine), Ophir, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
Yellow crystals of scheelite on quartz. Ex Jo Price Collection. Width of view 11.5mm. Stack of 110 images. Click on the image below for a higher resolution version.
ncat MAR05 Magnesiopascoite, Burro Mine, Slick Rock Mining District, San Miguel County, Colorado, USA
Stacked plates of orange magnesiopascoite crystals. Ex Al Wilkins. Width of view 11.5mm. Stack of 87 images. Click on the image below for a higher resolution version.
1283 Perovskite, Andradite, Chlorite, Actinolite, Perovskite Peak, San Benito Peak, San Benito Co., California, USA
Three stepped black perovskite crystals with brown centres, and smaller black melanite andradite garnets. Width of view 11.5mm. Stack of 100 images. Click on the image below for a higher resolution version.
ncat OW307 Rhodochrosite, Quartz, Tetrahedrite, Pyrite, Corner Pocket, Watercourse Rise, Watercourse Extension Drift, Sweet Home Mine, Alma District, Park Co., Colorado, USA
Collected September 1994. Pink rhombs of rhodochrosite with a couple of quartz crystals and a group of small pyrite crystals, all on a cluster of tetrahedrite crystals. Width of the specimen 18mm. Stack of 65 images. Click on the image below for a higher resolution version.
ncat JP1096 Dioptase, Christmas Mine, Christmas, Banner Mining District, Gila County, Arizona, USA
A tough one to photograph! Green prismatic crystals of dioptase from this classic locality. Ex Jo Price Collection, Width of view 11.5mm. Stack of 50 images. Click on the image below for a higher resolution version.
3654 Weeksite, Opal, Autunite No 8 Claim, Thomas Mountains, Juab Co, Utah, USA
There are two distinct species here based on the fluorescence response. Pale yellow fibrous sprays of weeksite that look like they fluoresce yellow, but are just reflecting the surrounding opal that fluoresce strongly. Width of view 11.5mm. Stack of 40 images (white light) and 10 images (UV). Use the slider...
0582 Neptunite, Dallas gem mine, San Benito Co., California, USA
A single black crystal with a hint of internal red fire. Width of view 11.5mm. Stack of 60 images. Click on the image below for a higher resolution version.
2485 Sylvite, Esterhazy Soak, New York, USA
Locality not listed in Mindat, nor can I find any other reference to it. Single sylvite crystal without matrix. Sheila Harper found this reference so that might help a bit. Width of view 11.5mm. Stack of 95 images. Click on the image below for a higher resolution version.
