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Teallite with Wurtzite & Cassiterite (early 1900s)
Carguaicollo Mine, Uyuni Mun., Antonio Quijarro Prov., Potosí, Bolivia
$1450
60mm x 40mm x 30mm
From: The Arkenstone
Tourmaline in Quartz
PC Mine, Jefferson Co., Montana, USA
$500
85mm x 55mm x 40mm
From: Marin Minerals
Covellite with Pyrite
Butte, Silver Bow Co., Montana, USA
$280
32mm x 25mm x 16mm
From: Marin Minerals
GARNET var. ANDRADITE var. MELANITE, PARGASITE
Arrondissement Diakon, Commune Diakon, Cercle de Bafoulabe, Kayes Region, Mali
$190
44mm x 40mm x 35mm
From: Quebul Fine Minerals
Gold
Eagle's Nest Mine, Sage Hill, Placer Co., California, USA
$7800
30mm x 20mm x 20mm
From: The Arkenstone
Malachite on Calcite
Friedensgrube, Lichtenberg, Hof Dist., Upper Franconia, Bavaria, Germany
$3250
70mm x 60mm x 50mm
From: The Arkenstone
Pyrite replacing Ammonite fossil
Kowala Quarry, Kielce County, Swietokrzyskie Voivodeship, Poland
$750
30mm x 30mm x 10mm
From: The Arkenstone
Despujolsite
N'Chwaning III Mine, Kalahari Manganese Field, Northern Cape, South Africa
$3500
20mm x 10mm
From: The Arkenstone
Betekhtinite
Dzhezkazgan mining district, Karaganda Region, Kazakhstan
$950
80mm x 80mm x 40mm
From: Marin Minerals
Opal (rare locality) (39.29 ct)
Spencer Opal Mine, Spencer, Clark Co., Idaho, USA
$2500
20mm x 20mm
From: The Arkenstone
Northupite (2 crystals)
Searles Lake, San Bernardino Co., California, USA
$200
13mm x 12mm x 11mm
From: Marin Minerals
Hydroxyapophyllite-(K) on Prehnite
Fairfax Quarry, Centreville, Culpeper Basin, Fairfax Co., Virginia, USA
$3000
150mm x 100mm x 90mm
From: The Arkenstone
Cobaltian Calcite
Mashamba West Mine, Lualaba, DR Congo
$1800
80mm x 80mm x 40mm
From: Marin Minerals
Millerite
Friedrich Mine | Wissen | Siegen | Siegerland | Rhineland-Palatinate | Germany
$481 *
31mm x 27mm x 24mm
From: Wendel Minerals
Malachite
Anna Quarry | Letmathe | Hagen | North Rhine-Westphalia | Germany
$181 *
65mm x 46mm x 46mm
From: Wendel Minerals
Acanthite ps. Argentite
San Juan de Rayas Mine, Guanajuato Mun., Guanajuato, Mexico
$7500
70mm x 40mm x 40mm
From: The Arkenstone
Hematite partially replacing Baryte with Goethite
Peters Mountain, Alleghany Co., Virginia, USA
$450
40mm x 30mm x 20mm
From: The Arkenstone
Volkovskite
Boulby Mine, Loftus, North Yorkshire, England, UK
$1450
30mm x 10mm
From: The Arkenstone