Oxides and Hydroxides

 

258 results

Mimetite
$300
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A choice thumbnail of highly lustrous yellow-green Mimetite crystals from the Tsumeb Mine in Namibia with
Quartz var. Amethyst
$2,850
 Banska Stiavnica (Schemnitz), Slovakia
A neat aesthetic Amethyst from the classic European locality Banská Stiavnica (Schemnitz), Slovakia. The
Quartz (Japan-Law Twin)
$1,250
 Brandberg, Namibia
A beautiful double-terminated heart-shaped Japan-Law twin of Quartz from the Brandberg Area of Namibia. A
Senarmontite
$300
 Djebel Haminate Mine, Algeria
A single grey octahedral crystal with several intergrown smaller crystals of Senarmontite from Djebel Hammimat
Cassiterite
$400
 Cornwall, England
Lustrous light to dark brown intergrown crystals of Cassiterite measuring to around 5 mm are associated with
Cuprite
$450
 Wheal Phoenix, England
Red areas of the Cuprite variety Chalcotrichite measuring to 1 cm, also with crystals of Cuprite investing
Hematite
$350
 Florence Mine, England
A classic small cabinet specimen of Kidney Ore Hematite from Florence Mine, Egremont, Cumbria.
Psilomelane
$300
 Restormel Royal Iron Mines, England
A rare example of botryoidal grey-black Psilomelane seldom seen from the Restormel Royal Iron Mine,
Hematite with Quartz
$4,000
 Florence Mine, England
A classic excellent specimen of Specular Hematite crystals richly intergrown with gemmy colourless pyramidal
Hausmannite
$450
 Wyndham Mines, England
Sooty black massive manganese oxide forms a dense matrix shot through with shallow vugs, most of which are
Cuprite
$150
 Wheal Gorland, England
Bright metallic looking octahedral crystals of Cuprite measuring in the 1-2 mm region, associated with silvery
Goethite
$200
 Restormel Royal Iron Mines, England
A classic specimen of Goethite from the Restormel Royal Iron Mine, Lostwithiel, Cornwall. Crystals measuring
Cuprite var Chalcotrichite
$500
 South Caradon Mine, England
Areas of bright red intergrown nests of acicular Chalcotrichite measure to 1 cm x 0.5 cm in a Quartz gossan
Hematite with Quartz
$5,000
 Florence Mine, England
A classic specimen of Florence Mine Specular Hematite crystals on Kidney Hematite with well-formed crystals of
Cassiterite
$750
 Goonbarrow China Clay Pit, England
Lustrous dark brown to yellow-brown crystals of Cassiterite measuring to 1 cm on a Granitic matrix from the
Hematite with Quartz
$150
 Wheal Cock, England
Abundant metallic black well-formed crystals of Hematite measuring to 4 mm mostly adorn a 'Limonite' coated
Cassiterite
$200
 St Agnes, Cornwall
Lustrous dark brown crystals of Cassiterite measuring to 4 mm on a Hornfels matrix from the St. Agnes Mining
Cassiterite after Orthoclase
$3,500
 Wheal Coates, England
Specimens of Cassiterite pseudomorph after Orthoclase are now comparatively rare. The specimen we have to
Cuprite
$600
 Wheal Gorland, England
A very rich sparkling maroon-red specimen of intergrown Cuprite crystals in the 1-3 mm region with white
Cuprite
$225
 Wheal Gorland, England
Classic specimen of intergrown lustrous maroon coloured 1-3 mm Cuprite crystals with a white vein-Quartz
Bindheimite after Bournonite
$6,000
 Felixbau Mine, Carinthia
A very rich and substantial specimen of intergrown deeply striated crystals of Bournonite measuring to 5 cm,
Smoky Quartz
$4,500
 St. Gotthard, Switzerland
An excellent single gem clear well terminated crystal of Smoky Quartz in great condition from the St. Gothard
Magnetite
$7,500
 Binn Valley, Switzerland
A fine old-time specimen with two old labels from the Binn Valley, Switzerland. Well-formed lustrous black
Hematite
$3,500
 N'Chwaning II Mine, South Africa
An excellent lustrous steeply pyramidal with pinacoid termination crystal of metallic black Hematite measuring
Hematite
$1,000
 Wessels Mine, South Africa
A bright metallic silvery-grey to black crystal of Hematite measuring to 3.7 cm displaying a pyramidal form
Cuprite in Calcite with Native Copper
$800
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Colourless crystals of Calcite have a fine bright orange colour due to inclusions of Cuprite with later
Lepidocrocite
$1,850
 Siegen, North Rhine-Westphalia
Lustrous deep burnt orange-red micro-crystals of Lepidocrocite densely cover both sides of a gossan matrix
Pseudomalachite
$3,000
 Ľubietová (Libethen), Banská Bystrica County
A Quartz plate attached to a vuggy mound of Quartz veinstone is richly coated with deep blue-green
Manganite
$7,500
 Ilfeld, Germany
A superb classic crystal specimen of Ilfeld Manganite. Excellent metallic black prismatic crystals of
Cuprite coated by Malachite
$700
 Andrássy II. Mine, Borsod-Abaúj-Zemplén Co.
A well-formed cubo-octahedral  crystal of Cuprite measuring to 3 cm dominates the specimen coated by a
Cuprite
$650
 Fowey Consols, Cornwall
Bright red capillary crystals of Cuprite variety Chalcotrichite invest areas to 1 cm on a white Quartz gossan
Hematite with Quartz
$450
 Florence Mine, England
A pleasing west Cumbria specimen of platy crystals of black Specularite Hematite with intergrown
Cuprite with Native Copper
$300
 Wheal Gorland, England
Intergrown deep maroon lustrous octahedral crystals of Cuprite measuring to around 4 mm on areas of Native
Cuprite
$1,300
 Wheal Gorland, England
A very rich crystal specimen of intergrown lustrous octahedral deep maroon coloured Cuprite crystals
Goethite
$340
 Botallack Mine, England
A pleasing display of botryoidal Goethite with a sparkling druse surface, and well-defined internal
Cassiterite
$250
 Wheal Pendarves, England
A central cavity veinstone is lined with a druse of dark lustrous brown Cassiterite to around 4 mm with
Ludlockite with Schneiderhöhnite
$2,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A terrific combination of a number of rare mineral species from the Tsumeb mine in Namibia.  A roughly
Hematite
$200
 N'Chwaning II Mine, South Africa
A very fine, steely-silver Hematite crystal measuring 1.9 x 1.8 x 1.4 cm perched on a small sliver of matrix
Cassiterite
$400
 Mt Xuebaoding, China
An excellent lustrous twinned crystal of Cassiterite measuring to 2.2 cm sits at the apex of the Muscovite
Anatase
$350
 Zard Mtn, Balochistan
Five lustrous classic crystal habit Anatase measuring from 3 mm to 10 mm are pleasingly arranged on the
Quartz Var. Eisenkiesel on Hematite
$300
 Florence Mine, England
A delicate 1 to 2 mm thick plate of Hematite coated with micro-crystals of sparkling jet-black Specularite
Cuprite
$350
 Cornwall, England
An off-matrix, porous granular mass of lustrous Cuprite micro-crystals from Cornwall, England.  Although
Rutile
$4,500
 Brumado, Brazil
A now hard to find Rutile forming a long deep dark red metallic lustrous prismatic crystal measuring to 7 cm
Bixbyite
$250
 Thomas Range, Utah
Three lustrous black crystals of Bixbyite measuring to 5 mm associated with crystals of Topaz and Fluorite
Hematite
$5,000
 Wessels Mine, South Africa
A stunning group of mirror-bright, beautiful Hematite crystals from the Wessels manganese mine at Hotazel
Valentinite with Kermesite
$950
 Neue Hoffnung Gottes Mine, Germany
Broad bladed striated crystals of colourless-white Valentinite measuring in the 1 mm range are
Whewellite
$400
 Oberschlema, Saxony
White and pale grey crystals of the oxalate Whewellite form a curving parallel development with slopping
Goethite
$450
 Schönbrunn, Saxony
An intriguing specimen of Goethite from Saxony, Germany, having a compact columnar form with