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Oxides and Hydroxides

Oxides and Hydroxides

219 results

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Hausmannite

$450

Wyndham Mines, England

Sooty black massive manganese oxide forms a dense matrix shot through with shallow vugs, most of which are

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Cuprite

$150

Wheal Gorland, England

Bright metallic looking octahedral crystals of Cuprite measuring in the 1-2 mm region, associated with silvery

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Cuprite

$375

Marke Valley Mine, Cornwall

Intergrown crystals of Cuprite in the 1-2 mm region from Marke Valley Mine, Upton Cross, Cornwall. Specimens

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Goethite

$200

Restormel Royal Iron Mines, England

A classic specimen of Goethite from the Restormel Royal Iron Mine, Lostwithiel, Cornwall. Crystals measuring

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Cuprite

$1,200

Liskeard, England

Very well-formed intergrown octahedral crystals of Cuprite measuring to 1.2 cm with a maroon-red colour on a

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Cassiterite

$150

Old Beam Mine, England

Well-formed intergrown twinned crystals of Cassiterite measuring to 8 mm from the Old Beam Mine, Bugle,

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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

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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

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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

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Hematite with Quartz

$150

Wheal Cock, England

Abundant metallic black well-formed crystals of Hematite measuring to 4 mm mostly adorn a 'Limonite' coated

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Cassiterite

$200

St Agnes, Cornwall

Lustrous dark brown crystals of Cassiterite measuring to 4 mm on a Hornfels matrix from the St. Agnes Mining

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Cassiterite after Orthoclase

$3,500

Wheal Coates, England

Specimens of Cassiterite pseudomorph after Orthoclase are now comparatively rare. The specimen we have to

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Cuprite

$600

Wheal Gorland, England

A very rich sparkling maroon-red specimen of intergrown Cuprite crystals in the 1-3 mm region with white

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Cuprite

$225

Wheal Gorland, England

Classic specimen of intergrown lustrous maroon coloured 1-3 mm Cuprite crystals with a white vein-Quartz

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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,

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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

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Magnetite

$7,500

Binn Valley, Switzerland

A fine old-time specimen with two old labels from the Binn Valley, Switzerland. Well-formed lustrous black

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Hematite

$3,500

N'Chwaning II Mine, South Africa

An excellent lustrous steeply pyramidal with pinacoid termination crystal of metallic black Hematite measuring

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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

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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

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Rutile with Hematite

$1,500

Novo Horizonte, Brazil

A classic specimen of radial (Rose Diagram-like) platy lustrous metallic black Hematite with golden-yellow

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Lepidocrocite

$1,850

Siegen, North Rhine-Westphalia

Lustrous deep burnt orange-red micro-crystals of Lepidocrocite densely cover both sides of a gossan matrix

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Pseudomalachit-e

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

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Manganite

$7,500

Ilfeld, Germany

A superb classic crystal specimen of Ilfeld Manganite. Excellent metallic black prismatic crystals of

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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

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Asisite, Britvinite and Hematophanite

$2,000

Kombat Mine, Namibia

A mixed ore specimen composed of granular Asisite, Britvinite, Hematophanite and Quartz from Kombat mine,

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Cuprite

$650

Fowey Consols, Cornwall

Bright red capillary crystals of Cuprite variety Chalcotrichite invest areas to 1 cm on a white Quartz gossan

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Hematite with Quartz

$450

Florence Mine, England

A pleasing west Cumbria specimen of platy crystals of black Specularite Hematite with intergrown

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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

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Cuprite

$1,300

Wheal Gorland, England

A very rich crystal specimen of intergrown lustrous octahedral deep maroon coloured Cuprite crystals

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Goethite

$340

Botallack Mine, England

A pleasing display of botryoidal Goethite with a sparkling druse surface, and well-defined internal

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Cassiterite

$250

Wheal Pendarves, England

A central cavity veinstone is lined with a druse of dark lustrous brown Cassiterite to around 4 mm with

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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

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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

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Cassiterite

$400

Mt Xuebaoding, China

An excellent lustrous twinned crystal of Cassiterite measuring to 2.2 cm sits at the apex of the Muscovite

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Anatase

$350

Zard Mtn, Balochistan

Five lustrous classic crystal habit Anatase measuring from 3 mm to 10 mm are pleasingly arranged on the

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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

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Cuprite

$350

Cornwall, England

An off-matrix, porous granular mass of lustrous Cuprite micro-crystals from Cornwall, England. Although

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Cassiterite

$400

Cornwall, England

A bed of reasonably well-developed black to clove-brown Cassiterite crystals richly coating the upper surface

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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

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Bixbyite

$250

Thomas Range, Utah

Three lustrous black crystals of Bixbyite measuring to 5 mm associated with crystals of Topaz and Fluorite

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Hematite

$5,000

Wessels Mine, South Africa

A stunning group of mirror-bright, beautiful Hematite crystals from the Wessels manganese mine at Hotazel

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Valentinite with Kermesite

$950

Neue Hoffnung Gottes Mine, Germany

Broad bladed striated crystals of colourless-white Valentinite measuring in the 1 mm range are

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Whewellite

$400

Oberschlema, Saxony

White and pale grey crystals of the oxalate Whewellite form a curving parallel development with slopping

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Goethite

$450

Schönbrunn, Saxony

An intriguing specimen of Goethite from Saxony, Germany, having a compact columnar form with

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Cuprite with Chlorite

$1,200

Wheal Gorland, England

A rib of Chloritised gossany Quartz with an extremely vuggy and porous structure is richly invested with

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Cassiterite

$350

Goonbarrow China Clay Pit, England

Brownish-black partly corroded Cassiterite crystals up to about 0.9 cm are richly scattered over the flat

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Hematite Var. Kidney Ore

$200

Egremont, England

A really terrific large miniature of the botryoidal variety of Hematite known as Kidney Ore from the Egremont