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Oxides and Hydroxides

Oxides and Hydroxides

451 results

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Cobaltoan Calcite with Kolwezite

$1,200

Mashamba West Mine, Lualaba

A stunning large miniature of vibrant, shocking pink Cobaltoan Calcite crystals, or as it is now termed,

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Rutile

$450

Pfitsch Pass, Austria

This incredibly rich Rutile is from the famed Pfitsch Pass in Zillertal, North Tyrol, Austria. It

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Fluorite on Hematite

$150

Florence Mine, England

Delicate cornflower blue cubic crystals of gemmy Fluorite completely line a shallow 5 x 2 cm cavity in a

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Cassiterite

$250

Wheal Pendarves, England

Instantly, on lifting this specimen from Wheal Pendarves, it is apparent a good proportion is Cassiterite

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Cuprite var. Chalcotrichite with Malachite

$750

Bedford United Mine, England

Plush, red velvet-like mats of post box red Chalcotrichite, the acicular variety of Cuprite, cover areas of up

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Cassiterite

$350

Krásno, Bohemia

A large thumbnail/small miniature group of lustrous Cassiterite crystals from Krásno in the Karlovy Vary

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Calcite with Pyrite

$2,500

Pribram, Czech Republic

This superb miniature Calcite is from the Příbram Mining District in the Czech Republic. Close

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Hausmannite with Andradite Garnet

$350

N'Chwaning I Mine, South Africa

A small cabinet specimen displaying two fine Hausmannite crystals from the world famous N'Chwaning I mine at

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Rutile with Quartz and Chlorite

$1,200

Ticino, Switzerland

A beautiful and historic specimen of acicular crystals of Rutile on and in transparent Quartz (“rock crystal”)

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Cuprite with Native Copper

$5,000

Camborne - Redruth - St Day District, England

The structure of this quite remarkable and unique Cuprite coating Native Copper lends itself to some famous

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Hematite with Chalcopyrite on Siderite

$3,500

Carn Brea Mine, England

Carn Brea mine formerly lay in the district of Illogan at the northern foot of Carn Brea, an elongated hill

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Andrewsite (Hentschelite-Rockbridgeite-Chalcosiderite) with Goethite

$1,200

Wheal Phoenix, England

Although we still refer to this mineral as Andrewsite, it was discredited in 1990, being a mixture of

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Cassiterite ps. after Orthoclase

$2,000

Wheal Coates, England

The old Wheal Coates engine house, set against the backdrop of the Atlantic Ocean, is an iconic image of

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Cuprite var. Chalcotrichite

$1,200

Camborne - Redruth - St Day District, England

Chalcotrichite, the acicular variety of Cuprite, is a favourite of many collectors and Cornwall certainly has

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Zircon with Ilmenite and Albite

$800

This is one of those specimens which, once you look a bit closer, certainly has the big wow-factor. From

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Magnetite

$400

Kovdor Zheleznyi Mine, Northern Region

These oversize Magnetite crystals are appropriately from an over-size iron ore mine, the enormous open pit

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Cassiterite with Beryl var. Goshenite and Mica

$350

Pingwu, Sichuan Province

Just a brief description of the vein mineralisation at the Pingwu Beryl mine on Mount Xuebaoding, Sichuan

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Calcite with Pyrite and Goethite

$450

Pribram, Czech Republic

Glassy, translucent Calcite crystals cover a matrix of massive, opaque white Calcite from the Příbram mining

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Goethite

$450

Schönbrunn, Saxony

An intriguing large miniature of Goethite from Schönbrunn in Saxony, Germany, having a compact columnar habit

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Loparite-(Ce)

$120

Khibiny Massif, Northern Region

Loparite-(Ce) is a rare oxide containing the elements caesium, sodium, calcium, titanium and niobium and is a

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Pyrochlore

$1,200

Vishnevye Mountains, Southern Urals

Pyrochlore is a fairly complex oxide containing sodium, calcium, fluorine and niobium and is the niobium

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Mottramite

$950

Mottramite was the first species I ever encountered from Tsumeb and so remains one of my favourite minerals

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Spinel on Vesuvianite

$200

Slyudyanka (Sludyanka), Eastern-Siberian Region

Impressive, modified octahedral black Spinel crystals to 1.6 cm diameter almost completely mask a layer of

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Hematite with Rutile and Quartz

$850

Cavradi Gorge, Switzerland

A typical Alpine cleft specimen from Cavradi Gorge in the Curnera Valley, Grischun, Switzerland.

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Magnetite with Chlorite

$150

Kurzhunkul' deposit, Kostanay Region

At $150 this ultra-lustrous Magnetite, with superb crystals of silvery-greyish sage green Chlorite, is a great

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Quartz var. Eisenkiesel on Hematite

$400

Margaret Mine, Cumbria

A most attractive small cabinet specimen of lustrous, smoky orange Eisenkiesel crystals scattered over an

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Cuprite var. Chalcotrichite

$450

Wheal Phoenix, England

Many blood red areas of Chalcotrichite, the acicular variety of Cuprite, line shallow vugs of up to 2 cm long

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Cuprite

$1,300

Wheal Gorland, England

A very rich crystallised cabinet specimen of intergrown, deep maroon octahedral Cuprite crystals measuring to

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Quartz with Hematite

$650

Frizington, England

An excellent example of equant, well developed and glassy, double-terminated Quartz crystals included with

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Cassiterite with minor Fluorapatite

$350

Mount Bischoff mine, Tasmania

A rare location specimen of well crystallised Cassiterite on mica with a small Fluorapatite crystal, from

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Hematite

$3,500

N'Chwaning II Mine, South Africa

Be you a systematic, South Africa or even specialist N'Chwaning collector, this outstanding Hematite would

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Cassiterite and Fluorite on Quartz

$350

Krupka (Graupen), Bohemia

Wow! A delightful and quite different combination of lustrous black Cassiterite crystals alongside tiny,

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