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Oxides and Hydroxides

149 results

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Azurite with Malachite pseudomorph after Azurite

$8,500

A spectacular and beautiful small cabinet specimen of glassy and gemmy deep blue Azurite crystals, silky

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Cuprite

$750

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A very rich crystal specimen of Cuprite displaying intergrown crystals measuring to 1cm on a

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Szenicsite with Powellite and Molybdenite

$7,500

Jardinera No 1 Mine, Chile

A rare and spectacular specimen of the extremely rare mineral Szenicsite with Molybdenite and copper-bearing

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Hematite with Rutile and Quartz

$850

Cavradi Gorge, Switzerland

A classic Alpine Cleft specimen from the Cavradi Gorge, Switzerland. Characteristic mirror bright

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Cuprite

$300

Phoenix United Mine, England

Abundant intergrown crystals of maroon coloured Cuprite measuring in the 1mm area on a typical

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Cuprite with Native Copper

$500

Camborne-Redruth, England

A rich crystal specimen of sparkling intergrown octahedra of Cuprite measuring around 4-5mm with areas of

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Cuprite with Dolomite

$6,500

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Well-formed clusters and single crystals of deep maroon red Cuprite are finely contrasted on the

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Cuprite

$3,200

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Well-developed lustrous complex crystals of Cuprite measuring to 1cm have formed in cavities on a

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Cuprite with Chrysocolla

$3,500

Mashamba West Mine, Katanga Copper Crescent

A classic specimen of Cuprite crystals from the Mashamba West Mine, Dem Rep of Congo. Crystals of

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Corundum Var. Ruby with Dravite in Marble

$2,000

Jegdalek Ruby Deposit, Afghanistan

A charming miniature composed of an aesthetic fuschia-pink Corundum crystal, variety Ruby, perched on a small

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Quartz with Hematite

$450

A clear and almost colourless terminated Quartz crystal which at one side is embedded with a platy

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Rutile

$250

A well terminated metallic dark chocolate-brown crystal of Rutile measuring 2.0 x 1.7 x 1.2 cm which protrudes

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Quartz with Dolomite on Hematite

$1,250

Florence Mine, England

Although the famous Florence mine close to Egremont in west Cumbria produced less than ten different mineral

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Cuprite

$200

Wheal Gorland, England

A limonite stained Quartz veinstone is shot-through and very richly covered with lustrous octahedral crystals

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Cassiterite after Orthoclase

$600

Wheal Coates, England

A Cornish classic of dark brown granular Cassiterite completely replacing a Carlsbad twinned

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Cassiterite with Pyrite

$750

Levant Mine, England

A very rich specimen of densely intergrown crystals of brown Cassiterite crystals with Quartz overgrown by a

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Hematite with Quartz

$3,500

Beckermet Mine, England

A very fine specimen of classic Specular Hematite with gemmy well-developed Quartz crystals. Crystals of

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Cuprite

$4,000

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Very rich lustrous crystal specimen of deep maroon red Cuprite crystals densely intergrown, with individual

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Cuprite with Native Copper

$300

An attractive 4 x 3 cm group of metallic burgundy-red Cuprite crystals to about 6 mm in a matrix of earthy

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Cassiterite

$3,000

Horni Slavkov (Schlaggenwald), Czech Republic

A large well-formed twinned crystal of Cassiterite measuring overall to nearly 5cm displays a lustrous black

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Valentinite with Galena

$2,500

Pribram, Czech Republic

Pearly lustred white crystalline ribbons and scattered aggregates of intergrown broad tabular Valentinite, on

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Valentinite with Galena

$1,200

Pribram, Czech Republic

Translucent white to pale brown bladed-lath-like crystals of Valentinite measuring to 4mm are densely

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Senarmontite

$300

Djebel Haminate Mine, Algeria

A terrific thumbnail of the antimony oxide Senarmontite (Sb2O3) as a cluster of bipyramidal, light grey

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Cuprite with Dolomite and Mimetite

$700

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A stunning and very rich specimen of Cuprite from the Tsumeb mine with crystals and platy crystalline areas

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Cuprian Adamite

$5,000

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Large intergrown lustrous crystals, to about 7 mm across, of Cuprian Adamite, cover the surface of a

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Franklinite with Calcite

$1,500

Franklin, USA

Two well-formed octahedral black classic crystals of Franklinite measuring to 1.3cm with many more smaller

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Zincite

$1,250

Franklin, New Jersey

A large and somewhat rounded crystal of opaque red-brown Zincite measuring to 3.5cm partly enclosed

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Manganite

$2,000

Ilfeld, Germany

Manganite from Ilfeld in the Harz district of Germany is regarded as one of the world’s most iconic minerals

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Anatase

$1,500

Kharan District, Balochistan

Four excellent metallic black lustrous crystals of Anatase have great form, measuring to 9mm on a contrasting

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Paradamite

$1,000

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A choice large thumbnail specimen of the zinc arsenate hydroxide Paradamite; a very rare species from the

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Arsentsumebite ps. after Mimetite with Azurite, Gartrellite, Olivenite and Malachite ps. after Azurite

$1,500

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

As the list of species suggests, this is one very busy specimen from Tsumeb with lots going on! It is unusual

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Calcite with Mottramite

$1,500

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

An elegant and aesthetic stacked group of three transparent rhombohedral Calcite crystals, intergrown and

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Cuprite

$950

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A terrific Cuprite from Tsumeb with many dozens of bright lustrous claret-red crystals scattered over and

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Calcite with Mottramite

$1,200

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Seldomly seen now, a tight cluster of gemmy nail head Calcite crystals shot through with dark olive-green

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Mottramite with Dolomite

$1,000

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A curious, little finger-sized (and shaped) stalactite of highly lustrous pale lilac Dolomite speckled with

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Adamite with Tsumcorite

$450

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

An interesting specimen of dark grey Quartz-rich matrix invested with various sulphides including Galena. On

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Malachite with Cuprite on Dolomite

$2,500

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

Strings of bright maroon Cuprite crystals of 2 to 4 mm and rosettes of deep emerald-green Malachite to 8 mm

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Hematite with Rutile

$2,250

Cavradi Gorge, Switzerland

A choice specimen of a lustrous black well-formed group of bladed Hematite crystals measuring to a good

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Hematite

$7,500

Fibbia Mountain, Switzerland

A spectacular and beautiful group of highly lustrous, metallic black Hematite crystals composed of blades in

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Cuprite

$1,200

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A fine intergrown crystal specimen of mostly octahedral Cuprite crystals measuring to 5mm. with crystalline

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Cuprite variety Chalcotrichite

$1,200

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A rich small cabinet specimen of plush red intergrown acicular Cuprite in the classic variety Chalcotrichite

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Cuprite

$850

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A neat thumbnail cluster display of cubo-octahedral Cuprite crystals, measuring to 1.2cm, with a deep

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Malachite

$150

A limonite-rich Quartz and Chalcopyrite veinstone has a central 3.0 x 1.5 cm vug richly lined with silky

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Creedite

$3,500

Navidad Mine, Mexico

This is an amazing example of Creedite, a calcium aluminium sulphate fluoro-hydroxide, occurring as a

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Hübnerite

$250

A rich 7 cm long seam of reddish-bronze to clove-brown Hübnerite crystals with a bright metallic lustre

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Corundum Var. “Ruby”

$950

Froland, Norway

An opaque, lustrous and intense cranberry-red hexagonal “Ruby” crystal partly embedded in a small block

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Quartz with Hematite

$750

A gorgeous small cabinet specimen of double terminated “Smoky” Quartz on Hematite, the latter in the habits of

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Goethite with Quartz

$300

A splendid small cabinet example of a Goethite-Quartz vein section from the Restormel Royal Iron Mine at