Type Locality. Grains of black cadmoselite with orange-brown sphalerite, and silvery metallic clausthalite? Width of view 6mm. Stack of 36 images. Ex Excalibur Minerals. Click on the image below for a higher resolution version.
Blue fibrous nakauriite. This species forms as vivid fibrous blue crystals on/in brucite-bearing serpentine. Type Locality. Width of view 6mm. Stack of 30 images. Click on the image below for a higher resolution version.
Pale yellow rhombohedral söhngeite crystals in gallite-germanite-tennantite matrix. Type locality for söhngeite and germanite. Width of view 6mm. Stack of 44 images. Second image (separate specimen) includes a tiny green crystal towards the top, perhaps a gallium-bearing member of the Alunite Supergroup? Width of view 6mm. Stack of 44 images....
Tiny tan crystals from the Type Locality. Width of view 7.25mm. Stack of 40 images. Click on the image below for a higher resolution version.
Nimite (Type Locality) is a chlorite group mineral (yellowish-green but can be stained by iron oxides), whilst népouite (bluish-green) is a serpentine group mineral. Ex Jim Ferraiolo. Width of view 6mm. Stack of 40 images. The original description of nimite refers to the locality as being two miles west of...
Bluish-green massive falcondoite. Specimen is 30x25x25mm. Type Locality. Click on the image below for a higher resolution version.
Colourless to greyish, and pinky-orange crystals of ancylite-(Ce), or possibly calcioancylite in small cavities in albite. In the second photo, white (probable) calcioburbankite (Type Locality). You can see the hexagonal cross section if you look closely. The label said burbankite. Width of view 3mm and stack of 50 images (ancylite)...
Two joined benitoite crystals (I hesitate to say twinned as I don’t know what sorts of twins can occur), shown in normal, longwave ultraviolet (red), and shortwave ultraviolet (blue). It is really interesting how different the surface textures look under each light source. Width of view 14.5mm. Click on the...
Dark blue benitoite, shown in white light, under longwave UV with a red fluorescence, and shortwave UV with a blue fluorescence. Width of view 12mm. Click on the images below for a higher resolution version.
Purple cobaltkoritnigite, pink erythrite balls, thin bladed prismatic silky white hörnesite, pale pink sainfeldite, white weilite, and silky white sprays of picropharmacolite. Type Locality for picropharmacolite. Width of view 7.75mm. Stack of 36 images. Click on the image below for a higher resolution version.
Green and bluish-green wardite in yellow crandallite with white crandallite and pale pinkish crandallite. Type Locality for wardite. Vintage micromount collected and mounted by John Melhase in 1935. Ex John Malhase. Ex California Academy of Science. Ex Steve Pullman. Width of view 5mm. Stack of 30 images. Click on the...
Almost pure pale beige fine-grained mass of tobelite. Ex Andrew Hodgson Collection. Type Locality. Click on the image below for a higher resolution version. Andrew Hodgson photo.
