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Oxides and Hydroxides

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Groutite

$600

Emilie Mine (Bülten-Adenstedt Mine), Germany

Groutite is a rare manganese hydroxide that is known to form excellent crystallised specimens at the Emilie

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Lepidocrocite

$750

Herdorf, Germany

This small cabinet specimen is an excellent example of Lepidocrocite from the polymetallic mine at Herdorf in

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Quartz with Hematite

$500

Egremont, Cumbria

A fine example of double terminated Quartz crystals richly covering a bed of Specular Hematite from the iron

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Cassiterite

$250

Harriet Lode, UK

This rich large miniature specimen of bright, sparkling Cassiterite crystals of the variety known as Diamond

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Cassiterite

$250

Old Beam Mine, England

Looking at this small cabinet specimen of Cassiterite on a partly kaolinized granite matrix, it is apparent it

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Cassiterite (3 specimens)

$350

Geevor Mine, England

Three rich, run-of-mine Cassiterite ore specimens from Geevor mine at Pendeen, Cornwall, England. The

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Cassiterite

$300

Camborne, England

This well crystallised Cassiterite comes with no specific mine name but is from the Camborne mining district

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Titanite with Rutile, Actinolite and K Feldspar var. Adularia

$4,500

Teufelsmühle, Salzburg

The mindat page shows an excellent photo by Günter Grundmann of the Teufelsmühle and to put it mildly, it

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Cassiterite with Sphalerite and Quartz

$650

Viloco Mine, Bolivia

This intriguing miniature Cassiterite with Sphalerite and Quartz is from the Viloco mine, a mine set in the

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Hübnerite with Quartz

$3,500

Mundo Nuevo, Peru

The manganese-tungsten oxide Hübnerite forms high quality crystals in the tungsten deposits close to the town

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Cassiterite

$300

Huanuni mine, Bolivia

Highly lustrous, metallic jet-black crystals of Cassiterite measuring to 1.5 cm form a miniature domed mass

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Creedite

$2,000

Santa Eulalia District, Chihuahua

It is interesting to note that of the 185 valid minerals listed in mindat from the Santa Eulalia District, in

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Hematite

$800

Rio Marina, Italy

One of the most well-known mineral species from the island of Elba is Hematite. This beautifully crystallised

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Cuprite with Malachite

$3,500

Andrassy II Mine, Hungary

The Andrássy II mine in north eastern Hungary has produced a rich suite of over sixty mineral species, Cuprite

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Liroconite with Clinoclase

$250

Wheal Gorland, England

A completely mixed small miniature of blue and green Liroconite, dark inky blue green Clinoclase and veinlets

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Hematite var. Specularite

$200

Florence Mine, England

Specularite is the black, crystallised variety of Hematite and this is a great miniature specimen, ideal for

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Cuprite with Native Copper

$1,500

Wheal Gorland, England

This fine small cabinet specimen of Cuprite and Native Copper crystals is from the world-famous Wheal Gorland

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Cassiterite var. Wood Tin

$550

Bojewan Placers, England

The variety of Cassiterite known as Wood Tin occurs at several localities throughout Cornwall, but the

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Cuprite var. Chalcotrichite

$450

South Caradon Mine, England

An old 19th-century miniature specimen of the Cuprite variety Chalcotrichite from the South Caradon mine which

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Sphalerite with Quartz and Dolomite

$1,500

Alston Moor, England

Excellent individual, complex, lustrous black Sphalerite crystals to 1.5 cm are scattered over an elongated

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Quartz with Hematite

$650

Frizington, England

A super example of equant, well developed and glassy, double-terminated Quartz crystals containing included

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Quartz with Hematite var. Eisenkiesel

$2,500

Frizington, Cumbria

The mineralogy of the west Cumbrian iron mines tends to be simple, yet the specimens produced represent some

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Zincite

$2,500

Franklin, New Jersey

The famous Franklin-Ogdensburg mining district exploited one of the world’s most species diverse orebodies,

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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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Native Lead with Pyrochroite

$3,000

Långban, Värmland

Although Långban mine has 314 recorded mineral species and is type locality to 76, it is for its Native Lead

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Quartz on Hematite var. Specularite

$300

Florence Mine, England

Fine granular massive Hematite forms the matrix of this excellent miniature of Quartz and Specularite from

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Cassiterite in Mica

$350

Wheal Owla (Wheal Owles), UK

A rare miniature of Cassiterite in Mica from Wheal Owla (aka Wheal Owles) at St. Agnes on the north coast of

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Hematite on Quartz

$500

Wheal Cock, England

Wheal Cock was part of the Botallack mine sett and is the type locality for Botallackite. The surface

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Cuprite with Chlorite

$1,200

Wheal Gorland, England

A rib of Chloritized gossan Quartz with an extremely vuggy and porous structure is richly invested with

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Leadhillite

$4,000

Tsumeb Mine, Namibia

Carlton M. Davis was a well-known American collector who attended Yale and lived in Ohio; a collector whom

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Goethite

$500

Tsumeb Mine, Namibia

Goethite is a well-known common secondary mineral at Tsumeb, but rarely forms attractive specimens. This

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Cuprite

$500

Tsumeb Mine, Oshikoto Region (Otjikoto Region)

A matrix of heavily iron-stained gossan, pervaded with acicular Quartz crystals and Cuprite, the latter taking

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Rutile in Pyrophyllite

$600

Champion Mine, California

Champion mine worked an Andalusite deposit, operating from 1922 until closing sometime during the 1930s when

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Rutile

$750

Graves Mountain, USA

Although many mineral species were found at the quarry on Graves Mountain, it is Rutile for which it is

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Quartz var. Smoky Quartz

$6,000

This magnificent group of Smoky Quartz crystals is known to be from Switzerland although its specific locality

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Hematite

$350

Le Haycot, France

Le Haycot in the Brézouard Massif of St. Marie-aux-Mines, France is best known for its fine specimens of

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Cassiterite

$500

Krásno, Bohemia

The mining district around Krásno near to Horní Slavkov in Bohemia in the Czech Republic produced tin and

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Manganite

$600

Ilfeld, Germany

This charming thumbnail Manganite is from the iconic European locality of Ilfeld in the German state of

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Rutile on Quartz

$1,500

Serra das Éguas, Brazil

This fantastic small cabinet specimen is a gorgeous combination of Rutile and Quartz from Serra das Éguas in

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Hematite

$2,500

Ouro Preto, Minas Gerais

A fabulous group of mirror-bright, hexagonal plates of Hematite forming stacked clusters to over 2 cm thick,

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Sphalerite with Quartz and Chalcopyrite

$400

Casapalca Mine, Peru

A great deal of crystallographic interest is packed into this quite charming miniature Sphalerite with Quartz

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Columbite

$1,600

Minas Gerais, Brazil

Columbite, an iron-niobium oxide, in this rather gorgeous miniature forms a blocky prism with myriads of

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Tantalite-(Mn)

$850

Nazareno, Brazil

An excellent orthorhombic crystal of Tantalite-(Mn) from the São João del Rei pegmatite province of Nazareno

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Hematite

$1,200

Casa de Pedra Mine, Brazil

This beautifully crystallised miniature Hematite is from the Casa de Pedra mine in Congonhas do Campo, Minas

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Rhodochrosite on Manganite

$1,250

N'Chwaning Mines, South Africa

This small miniature is a fine example of the blockier crystallised habit of Rhodochrosite from the N'Chwaning

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Cuprite on Native Copper

$1,250

St. Day, England

This reasonably large cabinet specimen (12.3 cm long) is from one of the many famous mines in the St. Day

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Quartz on Hematite

$750

Beckermet Mine, England

A 2 cm long double terminated Quartz crystal sits at a slight angle to a small plate of massive Hematite which

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Siderite on Quartz

$250

East Pool Mine, Cornwall

Deep butterscotch toffee coloured drusy Siderite almost entirely coats a group of milky Quartz crystals of up