Excellent colourless transparent cubic crystals reaching 2.2 cm in diameter and is basically all halite with the large clear crystals on the top of the piece growing on a much smaller light tan crystal base. It measures 11.0×6.1x 4.1cm in size, weighs 4.4 ounces. It is also wonderfully FLUORESCENT ORANGE...
Ex Joan Lamond 3195, but number does not match her Micro Collection Catalogue. Probably from her other mineral collection. Typical blue coloured crystals off matrix.
Labelled as from Ouray, but probably Brobdignag Mine. Black lusterous material in vugs in broken surface of the specimen.
Mounted on cork by the the late famous all-time master of micromounting, Neal Yedlin in a vintage cardboard box bearing his personal label on which he hand wrote the ID. Jack Slagle photos.
Type locality. Single crystal from the 350 foot level. Collected around 1970.
Microcrystals in silicified rhyolite. Ex John L Baum. Ex Franklin Mineral Museum
5x1mm area of flat-lying yellow-green terlinguaite crystals on 13mm wide matrix. Rare mercury mineral
Millerite inclusions in calcite. Ex G. Tribbey, ex Delbert L. Oswald Coll.
Tiny brown xls of this clay mineral coating chabazite rhombs with stilbite xls. Best with 30-40x
Multiple single crystals on matrix. Ex Paul Desautels, ex Delbert. L. Oswald Coll.
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.
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.
Orange markcooperite, yellow timroseite and green khinite
White tufts of dundasite sit atop a ball of rosasite on this specimen originally mounted by the late Micromount Hall of Famer, Bill Henderson. Photo width is 3.33mm.
More than just simple cubes on these boleite crystals! Ex Bill Henderson Collection. Ex Forrest Cureton. Photo width 3.33mm.
Calderónite crystals from the C and B Mine, Christmas, Dripping Spring Mts, Gila Co., Arizona.
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 only recorded from one other locality too. And that one is here in Victoria, at...
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 highly fluorescent yellow mineral (see second photo), likely either zippeite or natrozippeite, from the Blue...
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 single doubly-terminated crystal of monazite (dominant REE unknown), Cross Hill, Juniper Flats, Nuevo, Lakeview Mts, Riverside Co., California, USA.
A mix of cheralite (reddish-brown) and euxenite-(Y) (black) from the Uranium King Mine, Encampment, Encampment District, Carbon Co., Wyoming, USA. Ex Jim Ferraiolo.
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.
A cute pair of hexagonal vanadinite crystals from the Macy Mine (Percha Mine; Vanadinite Mine; J. C. Macy claim; Barking Frog; Bobbee De claim), Percha Creek, Hillsboro, Hillsboro District, Sierra Co., New Mexico, USA.
A pyrite crystal is perched on orange-red sphalerite, on a bed of colourless quartz crystals, from the Eagle Picher Mine, Cardin, Picher Field, Tri-State District, Ottawa Co., Oklahoma, USA.
A deep blue veszelyite from the Black Pine Mine (Combination Mine; Black Pine tailings; Black Pine dump), Black Pine Ridge, John Long Mts, Philipsburg District (Flint Creek District), Granite Co., Montana, USA. Ex Bernie Day Collection.
Tiny cream calcite crystals on dark purple fluorite from the Hill-Ledford Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois – Kentucky Fluorspar District, Hardin Co., Illinois, USA. Largest fluorite 65mm across. Mined in the late 1950s or early 1960s. Ex A. E. Seaman Mineral Museum (# DM 24769).
Blocky opaque apophyllite with minor colourless stilbite and white laumontite on green prehnite. 65x45x10mm. Ex Joe Cilen (7403). Ex Eugene Carmichael (562). Hydroxyapophyllite-(K), prehnite, stilbite, laumontite, from the Fairfax quarry (Centreville Quarry; Sisslers Quarry), Centreville, Culpeper Basin, Fairfax Co., Virginia, USA.
Purple strengite crystals, brownish-black rockbridgeite, orange botryoidal cacoxenite, and minor kidwellite. Part of the matrix appears to be vivianite. Width of view 11.5mm. Stack of 70 images. Click on the image below for a higher resolution version.
A 5mm wide pair of microlite group crystals from the Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA.
A plug for Mindat! I have had this specimen for many many years, and it was labelled simply wavellite, Bartow, Florida. The only Bartow in Mindat is in Georgia. So I used the Photo Search facility and typed in “wavellite from Florida”, and up popped photos of wavellite from Clear...
Smythite crystals in calcite from the Type Locality, State Route 37 road cut (6), Bloomington, Monroe Co., Indiana, USA. If you squint a little, you can make out the hexagonal outline. Specimen given to me a number of years ago by the late Jim Ferraiolo.
Interesting bipyramidal pyrite crystals, somewhat altered to brown goethite (although you can see some original pyrite peeking through on the edges) on calcite from Pint’s Quarry, Raymond, Black Hawk Co., Iowa, USA. The main cluster of crystals is 7mm across.
Cubes of galena with tiny pyrite cubes and minor reddish sphalerite from the Ballard Mine, Baxter Springs, Picher Field, Tri-State District, Cherokee Co., Kansas, USA. Specimen is 42mm wide. Ex Eugene Carmichael Collection (EWC 2295), ex Ed David Collection (111G), ex Peter Zodac Collection, ex Lawrence Conklin.
Purple fluorite nestled in amongst dolomite crystals from Liter’s Quarry (Hanson Aggregates Irvington Quarry), Breckinridge Co., Kentucky, USA. While looking at this through my microscope, I assumed it was a cube of fluorite, but the photo shows more detail. It has tried to develop into an octahedron, but has ended...
A zoned tourmaline, part foitite, part elbaite, according to the label, from the Mount Mica Quarry (Mount Mica Mine), Paris, Oxford Co., Maine, USA. It has broken at some point in its geological past, and healed again, but slightly offset, giving it a slightly bent look. It is 25mm long.
Red realgar and yellow orpiment from the Getchell Mine (North Pit; Center pit; South pit), Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA. Interesting to see the crystallisation of each species seemingly oriented at 90 degrees to one another.
Fibrous to acicular crystals of cacoxenite from Mason Pass, Yerington, Yerington District, Singatse Range, Lyon Co., Nevada, USA. Ex Hatfield Goudey (of goudeyite fame). Ex John Lewis Collection.
Bornite pseudomorph after chalcocite, Belmont Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA. Labelled as A Vein, 3000 Level. Ex Hatfield Goudey. Ex John Lewis Collection.
Striking blue kinoite on colourless crystals of hydroxyapophyllite-(K) from the Christmas Mine (Red Bird shafts; Inspiration Mine; Hackberry shafts), Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA. One of my favourite blue tones.
Fragile tufted kidwellite from Indian Mountain, Cherokee Co., Alabama, USA. Collected in or before 1983.
Colourless and purple fluorite cubes and colourless quartz crystals on white barite. Minor yellow wulfenite. Unknown black needles.
Classic Red Cloud wulfenite crystal group with tiny mimetite crystals.
