A single deep pink/purple grossular crystal on a small amount of wollastonite matrix. A few smaller crystals are dotted around. The garnet, a darker pink than many, fluoresces red under longwave UV. Ex Keith Williams,...
Vintage Neal Yedlin micromount. Width of view 19mm. Stack of 44 images. A fine adamite from the Ojuela Mine, mounted by Yedlin on a piece of black cork in a hand-labeled vintage cardboard micromount box,...
Type Locality. Cubic crystal of boleite upon which plates of pseudoboleite have grown epitactically on the boleite cube faces. Ex Bernie Day specimen. Width of view 5mm. Stack of 30 images. Click on the image...
Labelled as boulangerite, El Sombrette Mine, Durango. Likely jamesonite, and from the Sombrerete Mine, in Zacatecas, but close to the border with Durango. Ex John Lewis Collection.
Colourless to yellowish hexagonal prisms of milarite. Ex Bob Rothenberg. Ex Walter Bagley. Width of view 3.5mm. Stack of 80 images. Click on the image below for a higher resolution version.
Ex Rock Currier Collection #1329. Sharp creedite crystals with a pale lavender hue. Measures 58x30x28mm.
Tiny brown crystals of zemannite and pink spiroffite(?). Width of view 5mm. Stack of 40 images.
Butterscotch tabular crystals, largest 15mm across. Five views of the one specimen, each taken with iPhone 11 Pro Max plus Struman macro lens.
Highly fluorescent under longwave and shortwave. Size 45x30x25mm.
Pale yellow radiating groups that strongly fluoresce green under Convoy longwave light. Width 18.5mm. Stack of 126 images (white light). Stack of 34 images (UV). Ex Malte Bartholomaus.
5200-5203 mounted in one box. by Jules Bernhardt in 1976. Video best viewed full screen.
Old specimen of largish hemimorphite crystals partially coated by calcite crystals and glued to a glass base. Acquired from Crystal Habit. Ex J. Strange Collection. Video best viewed full screen.
Yellow bypyramidal crystals of wulfenite with green mimetite balls. Video best viewed full screen.
Fluorite is white, only picked up under longwave UV. Tiny scalenohedral calcite crystals. Ex Barry Johnson Collection. Video best viewed full screen.
Superb azurite crystal altering from within to malachite.
Greenish-yellow pearly hemispheres
Yellow crystals of tellurite on platey brownish denningite with silver tellurium.
Schmitterite as tiny yellow to cream sprays, emmonsite green
Unknown Mexican locality. Suggestions welcomed!
Doubly terminated crystal in matrix. Ex Bob and Vera Turner Collection, El Paso, Texas. Ex Elena van Schriver. Labelled as Lake Jaco. According to Mindat, this is incorrect.
Interesting cluster of amethyst crystals, 35mm tall.
Ex Bernie Day specimen.
Ex Jack Nelson Collection
Ex Jack Nelson Collection
Type Locality. Ex John Lewis collection.
Brown crystals of Zemannite/Kinichilite. Type Locality for Zemannite, Richard Bell
Brown crystals of Zemannite/Kinichilite. Type Locality for Zemannite, Richard Bell
Adamite crystals, many having purple manganoan cores with colourless outer areas.
Cluster of doubly-terminated quartz crystals with unknown black minerals. Purchased at Keystone, priced at $12.
Single greenish yellow crystal 12.5mm long on matrix. Ex University of Arizona Mineral Museum #19204. Donated by Helga K Herfirth (sp?), 25/1/2000, number 395.
Single thick lustrous blue crystal on minor amount of matrix. This lot of azurites was collected from a water-course that intersected the orebody. Many great specimens were found andtaken to the US to sell. When...
A water-clear fishtail gypsum crystal, 100mm long.
Rhodochrosite inclusions in amethyst.
Type Locality. Single blue cube, no matrix. Ex John Melhase (pre 1938), ex California Academy of Sciences, ex Steve Pullman.
Jim Ferraiolo 6/2005
Jim Ferraiolo 6/2005
Jim Ferraiolo 6/2005
Ex Mike Knew Collection. Mike Knew is the owner of Top Gem Minerals in Tucson, Arizona.
A bright specimen of fluorite with stair-stepped formation. It has very nice dark orchid purple colour. The crystals are translucent with dark phantoms inside. Ex Mike Knew Collection. Mike Knew is the owner of Top...
Bright large translucent yellow barite crystals growing on very sparkly quartz crystal matrix. Barite is uncommon at this locality. Ex Mike Knew Collection. Mike Knew is the owner of Top Gem Minerals in Tucson, Arizona.
Black/brown resinous material on calcite(?) crystals.
Six crystals/clusters, including a star formed by cumengite crystals epitaxially overgrown on boleite.
Purple fluorite crystals on quartz
Yellow-green tellurite. Grey-metallic gruzdevite microcrystals are embedded in the matrix. Ex Excalibur Minerals. Ex Eugene Carmichael Collection number 1026. Ex John Betts number 58658.
Single platey crystal of yellowish sonoraite with green emmonsite.
Listed as Newny Mine but likely New NV (New Nevada). Numerous Native Silver crystals in a ‘v’ form with an irridescent lustre.
Boxed micromount with several cubic deep blue boleite crystals on matrix. These form in clay seams, so matrix specimens are fairly uncommon.
Boxed micromount with 6 tiny xl specimens mounted on a card. Specimens clockwise from top left: boleite cuboctahedron, cluster of boleite cuboctahedrons, pseudoboleite on boleite, atacamite, boleite cubes on white anglesite crystals. Centre: boleite cube.
From the 16/200 Level. Glassy, transparent xls on matrix. Best with 10-20x. Collected by Michael Shannon January, 2010
Large prismatic yellow crystals of zemannite in quartz vugh
Tiny brown puffballs of kuranakhite with dark yellow gold and silver tellurium
Greenish-yellow spheres of poughite with tiny yellow tufts of schmitterite
Tiny brown puffballs of kuranakhite with dark yellow gold and silver tellurium
Masses of creamy plates of paratellurite with yellow tellurite
Pseudomorph of chrysocolla after boleite and pseudoboleite. From near to the Amelia Mine. Too fragile to mount so nestled in tissue.
Schmitterite as tiny yellow to cream sprays, emmonsite green
