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...
Green fluorescent voglite with platy yellow zellerite(?).
Microcrystalline black vrbaite, brown avicennite and metallic grey parapierrotite coating chert matrix.
A single deep purplish-red hexagonal crystal 7mm long and 6mm across in matrix. Ex Graham Lee Collection. Width of view 17.25mm. Stack of 50 images. Click on the image below for a higher resolution version.
Acquired by Joan Lamond in 1995 from Joe Marty.
A single black bixbyite with pale pinkish topaz crystals. Width 11mm. Stack of 140 images. Ex Ted Johnson. Labelled as from Delta, Utah.
Yellow masses of crystals of the rare potassium sulphate goldichite on crystalline pinkish halotrichite. Type Locality for goldichite. Width 4.5mm. Stack of 170 images. Ex John Sobolewski. Ex Matt Gibbs.
Green hemispheres on matrix. Width 11mm. Stack of 70 images. Ex John Sobolewski. Ex Matt Gibbs.
Sharp orange-red crystal groups and single crystal. Ex Brian Shelton Collection.
Olive-green to yellowish juanitaite, green tyrolite.
Unknown fluorescent green., Al Wilkins
Unknown strong fluorescent green., Al Wilkins
Type Locality. Extra fluorescent!, Al Wilkins
Blue. Two different fluorescent minerals too., Al Wilkins
Type Locality. Bright fluorescence, Al Wilkins
bluish, orange-yellow, and unidentified fluorescent, Al Wilkins
Type Locality. Tiny yellow prismatic crystals. Fluorescent. Also another fluorescent mineral present., Al Wilkins
Green fluorescence, Al Wilkins
Yellow. Bright fluorescence, Al Wilkins
Johannite and natrozippeite fluoresce, Al Wilkins
Yellow and fluorescent Natrozippeite, Al Wilkins
Yellow fluorescent natrozippeite, blue-green gerhardtite, colourless ferrinatrite, Al Wilkins
Yellow johannite, green unknown (more crystalline and bright fluorescence), blue unknown, Al Wilkins
Type Locality for plasilite. Very fluorescent, Al Wilkins
Orange. Collected by Tim Rose 20/10/2013, Al Wilkins
Yellow. Highly fluorescent, Al Wilkins
Acicular rabbittite. Yellow schrockingerite, highly fluorescent, Al Wilkins
Ex John Lewis collection.
Ex John Lewis collection.
Type Locality. Ex John Sobolewski, Matt Gibbs
Double-terminated., Walstrom Mineral Enterprises, Carson City, Nevada
Type Locality for both species., Al Wilkins
Labelled as Colorado. Ex Tony Jones. Ex David Garske.,
ex Joan Lamond Collection. Pale yellow crusts.
Plášilite (yellow), and manganoblödite (pink), from the Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah. Plášilite is also recorded from one other locality, the nearby Green Lizard Mine. And manganoblödite is...
Sideronatrite on Asphaltum, Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA.
So far, seventeen minerals new to science have been described from this mine. This is another one of them. Belakovskiite as tiny pale silky fibres (mainly in the bottom left of the photo), with a...
Natrozippeite, one of a number of bright yellow minerals from the Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA. Thin bladed crystals and aggregates.
A specimen of natrozippeite, this one with brochantite from the Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA. Yellow thin bladed crystals of natrozippeite with green aggregates of brochantite.
A lovely shade of green mixite and blue chrysocolla, from the Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA.
