Micromounts - American Continents excluding Greenland..........Updated 16 March 2026..........
3586 AURICHALCITE - 79 Mine, Hayden, Gila Co., Arizona, USA Mass of greenish blue bladed Aurichalcite crystals on a small amount of matrix 2.00 1
1954 AURORITE - Aurora Mine, Treasure Hill, White Pine Co., Nevada, USA Grey inclusions of Aurorite in calcite, not pretty. Ex John Tuffnell collection 1.00 1
3587 BIKITAITE - Foote Mine, Cleveland Co., North Carolina, USA Colourless bladed striated Bikitaite crystals on matrix SOLD OUT .
1316 BIOTITE & SODALITE - Cancrinite Hill, Bancroft, Ontario, Canada Black hexagonal Biotite crystals embedded in dark blue crystalline Sodalite or whitish Albite SOLD OUT .
3588 BROCHANTITE & LINARITE - Blanchard Mine, Bingham, New Mexico, USA Dark green Brochantite crystals with blue Linarite on matrix SOLD OUT .
3589 CALCITE - Highland Bell Mine, Beaverdell, British Columbia, Canada Greyish hexagonal Calcite crystals on matrix. Fluoresces dark pink MW UV SOLD OUT .
3590 CALDERONITE - C & B Mine, Gila Co., Arizona, USA Small dark orange Calderonite crystals on matrix SOLD OUT .
3591 CALLAGHANITE - Gabbs, Nye Co., Nevada, USA Deep blue Callaghanite with some tiny white Hydrozincite spheres on matrix SOLD OUT .
3592 CLINOPTILOLITE & MORDENITE - Succor Creek, Malheur Co., Oregon, USA Pale yellow to colourless tabular Clinoptilolite crystals with white fibrous Mordenite in cavities in matrix 2.00 2.50p 2 1
3076 CLINOZOISITE - Baja California, Mexico Large dark brownish black Clinozoisite crystal sections, no matrix 1.00 1
457 COLEMANITE & CALCITE - Boron, Kern Co., California, USA Colourless Colemanite crystals intergrown with pale yellow Calcite crystals, no matrix 1.00 2.00 1 3
2507 COLUSITE & PYRITE - Leonard Mine, Butte, Montana, USA Bright silvery Colusite intergrown with brassy Pyrite forming most of specimens 1.50p 1
2508 CONICHALCITE - Level 7, Mina Ojuela, Mapimi, Durango, Mexico Small green rounded aggregates of minute Conichalcite crystals thickly lining cavities in gossan matrix 1.50p 1
3077 CONICHALCITE - Mina Ojuela, Mapimi, Durango, Mexico Small green spheres of tiny acicular Conichalcite crystals lining cavities in gossan matrix 1.50p 1
3593 COPPER - Ray Mine, Gila Co., Arizona, USA Aggregate of Copper crystals, no matrix 2.00 1
3594 CORONADITE pseudomorphs after WULFENITE - Glove Mine, Santa Cruz Co., Arizona, USA Dark grey Coronadite completely replacing tabular Wulfenite crystals on matrix SOLD OUT .
3595 CUPRITE - Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA Deep ruby red Cuprite crystals on matrix SOLD OUT .
3596 CUPRITE, COPPER & DELAFOSSITE - Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA Deep ruby red Cuprite crystals with bright Copper and small black fuzzy Delafossite patches on matrix SOLD OUT .
3597 CUPRITE & DELAFOSSITE - Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA Deep ruby red Cuprite crystals with small black fuzzy Delafossite patches on matrix SOLD OUT .
3598 DUMORTIERITE - Valley View Mine, Quartzsite, La Paz Co., Arizona, USA Mauve acicular Dumortierite crystals in cavities and running through matrix SOLD OUT .
2514 ELLESTADITE - Crestmore Quarries, Riverside Co., California, USA Pale yellow rounded Ellestadite crystals embedded in blue calcite matrix 1.50p 2
3599 EMMONSITE - Moctezuma Mine, Moctezuma, Sonora, Mexico Green Emmonsite on matrix SOLD OUT .
3078 EPIDOTE - Kuppa Quarry, Oahu, Hawaii, USA Olive green Epidote crystals in cavities in basalt matrix 1.00 1
3600 FERRIERITE & CLINOPTILOLITE - Kanan Road Quarry, Agoura, Los Angeles Co., California, USA Small white clusters of Ferrierite in amongst colourless tabular Clinoptilolite crystals in a cavity in matrix SOLD OUT .
3601 FERRITARAMITE - Pieta Creek, Mendocino Co., California, USA Small specimen, black Ferritaramite crystals in matrix SOLD OUT .
2518 GETCHELLITE - Getchell Mine, Adam Peak, Humboldt Co., Nevada, USA Deep orange red mica like Getchellite in realgar rich matrix SOLD OUT .
2523 GISMONDINE & CHABAZITE - Oak Grove Park, Clackamas River, Clackamas Co., Oregon, USA White Gismondine crystals with small colourless Chabazite crystals in cavities in matrix 1.00 1.50p 2 1
3602 GOETHITE - Ray Mine, Scott Mountain, Pinal Co., Arizona, USA Black botryoidal Goethite on matrix 50p 1.00 1 2
3603 GOLD - Canada Bright and shiny Gold in quartz matrix SOLD OUT .
2526 HEMIMORPHITE - 79 Mine, Hayden, Gila Co., Arizona, USA Aggregates of tiny pale blue Hemimorphite crystals in a cavity in gossan matrix 1.50p 1
2546 HEMIMORPHITE & PLATTNERITE - Ojuela Mine, Mapimi, Durango, Mexico Bladed Hemimorphite crystals coloured black by heavy inclusions of minute Plattnerite crystals on matrix. Ex David Hardman specimen #5242 SOLD OUT .
2527 HIDALGOITE - Gold Hill Mine, Tooele Co., Utah, USA Pale green micro crystallized Hidalgoite crystals forming the bulk of the specimens 1.00 5
2530 KAERSUTITE - Kaersutite Occurence, Hoover Dam, Mohave Co., Arizona, USA Shiny black to very dark brown massive Kaersutite embedded in matrix SOLD OUT .
2531 KINOITE & APOPHYLLITE - Christmas Mine, Gila Co., Arizona, USA Small bright blue Kinoite crystals overgrown with blocky colourless Apophyllite crystals on matrix SOLD OUT .
3605 LAUEITE - Palermo Mine, North Groton, New Hampshire, USA Small pale orange Laueite crystals in matrix with possible associated Siderite SOLD OUT .
1367 MARCASITE, SPHALERITE, CHALCOPYRITE & PYRITE - Tri-State, Oklahoma, USA Bright wedge shaped Marcasite crystals with reddish orange modified tetrahedral Sphalerite crystals as well as more yellowish modified tetrahedral Chalcopyrite crystals and a few small cubic Pyrite crystals on dolomite matrix 1.50p 1
3606 MARICOPAITE - Moon Anchor Mine, Tonopah, Arizona, USA Small white acicular Maricopaite crystals in cavities in matrix SOLD OUT .
3607 META-STIBNITE & OPAL-AN - Steamboat Springs, Washoe Co., Nevada, USA Orange red Meta-Stibnite on and in glassy botryoidal colourless Opal-AN on matrix. 1 specimen ex Isabel Geldart 2.00 1
1369 MILLERITE & CHALCEDONY - Kaser Quarry, Ollie, Keokuk Co., Iowa, USA Mats of very fine acicular Millerite needles in cavities in banded Chalcedony matrix 1.00 1
3608 MUIRITE - Esquire #7 Claim, Big Creek, Fresno Co., California, USA Small orange bits of crystalline Muirite in matrix SOLD OUT .
2540 NATROLITE - Poudrette Quarry, Mont Ste. Hilaire, Quebec, Canada Cavities in matrix containing brown Natrolite crystals with a white Gonnardite coating and black Aegirine crystals 1.50p 2
3609 PANDORAITE - Pandora Mine, La Sal, San Juan Co., Utah, USA Tiny black Pandoraite crystals in cavities in matrix +/- orange Pascoite SOLD OUT .
3610 PANDORAITE & PASCOITE - Pandora Mine, La Sal, San Juan Co., Utah, USA Tiny black Pandoraite crystals with small orange Pascoite crystalsin cavities in matrix SOLD OUT .
3611 PARASYMPLESITE - Ojuela Mine, Mapimi, Durango, Mexico Greyish green chisel shaped Parasymplesite crystals forming most of specimen SOLD OUT .
3612 PECTOLITE - Poudrette Querry, Mont Ste. Hilaire, Quebec, Canada Silky white fibrous Pectolite scattered over matrix. Ex David Hardman collection #4736 SOLD OUT .
3613 PYRARGYRITE - Nabob Mine, Longton, Clear Co., Colorado, USA Small red Pyrargyrite crystal in a cavity in matrix SOLD OUT .
3614 PYRITE, CALCITE & ANKERITE - Homestake Mine, Lead, Lawrence Co., South Dakota, USA Brassy cubic Pyrite crystals with clear tabular hexagonal Calcite crystals and pale brown Ankerite on matrix SOLD OUT .
2550 PYROPHYLLITE - Pyrophyllite Occurrence near Indian Gulch, 3 Buttes, Mariposa Co., California, USA Radiating aggregates of whitish micaceous Pyrophyllite, no matrix SOLD OUT .
2551 RHODOCHROSITE & QUARTZ - Castrovirreyna Mine, Huancavelica, Peru Pale pink Rhodochrosite covered in a layer of small Quartz crystals 1.00 2
2552 SCORODITE & CARMINITE - Gold Hill Mine, Tooele Co., Utah, USA Small greyish Scorodite crystals with minute reddish brown Carminite crystals forming the whole of the specimen. Ex Jill Goltz collection 1.50p 1
3615 SILVER & ACANTHITE - Highland Bell Mine, Beaverdell, British Columbia, Canada Pieces of Silver partly or completely covered with black Acanthite in quartz matrix 1.00 1.50p 1 1
1397 SODALITE - Cancrinite Hill, Bancroft, Ontario, Canada Dark blue crystalline Sodalite with or without whitish Albite and/or yellow Cancrinite, no matrix 1.00 1
1990 SODALITE & CANCRINITE - Cancrinite Hill, Bancroft, Ontario, Canada Dark blue crystalline Sodalite with yelow crystalline Cancrinite +/- Albite, no matrix SOLD OUT .
3616 SPANGOLITE & LINARITE - Mex Tex Mine, Bingham, Socorro Co., New Mexico, USA Dark greenish blue hexagonal Spangolite crystals with dark blue Linarite in cavities in matrix SOLD OUT .
3617 SPHALERITE - Thomaston Dam Railcut, Thomaston, Litchfield Co., Connecticut, USA Small black Sphalerite crystals on matrix. Ex Jill Goltz SOLD OUT .
3618 TELLURITE - Moctezuma (Bambolla) Mine, Moctezuma, Sonora, Mexico Orange waxy looking Tellurite on matrix SOLD OUT .
3619 TYUYAMUNITE - Paradox Valley, Montrose Co., Colorado, USA Small yellow tabular Tyuyamunite crystals on calcite matrix SOLD OUT .
3620 WOODHOUSEITE - Champion Mine, Mono Co., California, USA Aggregates of pale brown rhombohedral Woodhouseite crystals on matrix 2.00 2
3101 WULFENITE - JC Holmes Claim, Santa Cruz Co., Arizona, USA Orange tabular Wulfenite crystals in a cavity in matrix 1.00 1
584 WULFENITE - Melissa Mine, La Paz Co., Arizona, USA Bright orange tabular or bipyramidal Wulfenite crystals on matrix +/- Mimetite SOLD OUT .