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Oxides and Hydroxides
Oxides and Hydroxides
440 results
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Brookite with Anatase
Brookite with Anatase
$750
Prenteg, Gwynedd
The mention of Prenteg conjures thoughts of the titanium dioxide polymorphs and this terrific miniature is a
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Anatase with Albite and Quartz
Anatase with Albite and Quartz
$1,000
Twll Maen Grisial, UK
A 3 mm clove brown Anatase crystal nestles in a small cleft next to colourless Quartz crystals and several
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Brookite
Brookite
$300
Tremadoc, Gwynedd
Two intergrown, lightly striated Brookite crystals sit flat against a greenish-grey igneous-type matrix and
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Hematite
Hematite
$850
Cavradi Gorge, Grischun
A magnificent small miniature of classic Iron Rose Hematite with multiple-stacked hexagonal plates forming a
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Cuprite
Cuprite
$350
Wheal Gorland, England
Intensely deep maroon to mahogany red octahedral Cuprite crystals richly cover the top surface of a highly
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Calcite on Goethite included Quartz (2 pieces)
Calcite on Goethite included Quartz (2 pieces)
$200
19 Level Load Drive, Cornwall
Collectors of Cornish minerals will be familiar with many forms of Calcite from the legendary Geevor and
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Pyrolusite
Pyrolusite
$700
Gremmelsbach, Germany
Pyrolusite, a manganese dioxide, is one of those minerals which commonly occurs as a minor coating or
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Bindheimite and Malachite ps. after Bournonite
Bindheimite and Malachite ps. after Bournonite
$2,500
Hüttenberg, Carinthia
Bindheimite is a hydrous lead antimony oxide produced from the alteration of other ores and is a species still
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Brookite
Brookite
$400
Twll Maen Grisial, UK
Prenteg, close to Porthmadog in north-west Wales, is famed for its magnificent Brookite crystals. The exact
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Valentinite
Valentinite
$850
Lill Mine, Bohemia
The antimony oxide Valentinite forms an inverted spray of translucent, cream acicular crystals in a tight,
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Psilomelane
Psilomelane
$1,250
Vrančice, Central Bohemian Region
The Příbram Mining District covers a wide area and Vrančice is a village within it, around which several mines
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Cassiterite
Cassiterite
$500
Horní Slavkov (Schlaggenwald), Bohemia
This Cassiterite from Horní Slavkov in the Karlovy Vary Region of Bohemia, Czech Republic, is one of those
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Goethite
Goethite
$900
Trebsko, Czech Republic
The area surrounding Třebsko, a village 10 km southwest of Příbram, was a silver-uranium mining district and
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Stibiconite on Stibnite
Stibiconite on Stibnite
$250
Baia Sprie, Romania
Masses of intergrown, long acicular, silver-black Stibnite crystals to over 1.5 cm long are coated in a
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Magnetite
Magnetite
$600
Banat Mountains, Romania
A lovely miniature of lustrous octahedral Magnetite crystals from the Banat Mountains in Caraş-Severin County,
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Hübnerite with Quartz and Pyrite
Hübnerite with Quartz and Pyrite
$1,500
Baia Sprie, Romania
A lovely miniature of intergrown, lustrous, black bladed Hübnerite crystals measuring to 2.6 cm, nicely
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Cassiterite
Cassiterite
$1,500
Horni Slavkov (Schlaggenwald), Czech Republic
A number of mines surround the historic mining town of Horní Slavkov in the Karlovy Vary Region of Bohemia in
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Corundum var. Ruby
Corundum var. Ruby
$2,500
Froland, Norway
A splendid example of Ruby Corundum on matrix from the Froland region in the county of Agder in southern
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Hematite var. Iron Rose
Hematite var. Iron Rose
$600
St. Gotthard, Switzerland
A chunky and robust Hematite Iron Rose, attached to a smear of granular milky-Quartz matrix, from the St.
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Diopside and Magnetite and Clinochlore
Diopside and Magnetite and Clinochlore
$300
Nordmark Odal Field (Nordmarksberg), Sweden
A saddle-shaped, V-section, greenish metamorphic matrix, similar to a tight recumbent fold, is encrusted on
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Rutile
Rutile
$450
Pfitsch Pass, Austria
This incredibly rich Rutile is from the famed Pfitsch Pass in Zillertal, North Tyrol, Austria. It displays
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Cassiterite
Cassiterite
$1,750
Horni Slavkov (Schlaggenwald), Czech Republic
Cassiterite is one of those species which holds great appeal to so many mineral collectors, me included. This
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Brookite on Quartz
Brookite on Quartz
$700
Switzerland, Europe
A delightful single terminated Brookite crystal emerges from one prism face of a glassy, part Quartz crystal
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Azurite with Calcite and Malachite ps. after Cuprite
Azurite with Calcite and Malachite ps. after Cuprite
$450
Lavrion District Mines, Greece
Specimens from the Lavrion-Kamariza Mining District tend to be inherently aesthetic and this small miniature
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Goethite
Goethite
$150
Porthgwarra, Cornwall
This lustrous Goethite miniature is from a locality in Cornwall which I have never before encountered.
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Cassiterite var. Stream Tin (in glass phial)
Cassiterite var. Stream Tin (in glass phial)
$600
Tregoss Moor, Cornwall
Judging by the neatly written label attached to the glass phial, this appears quite an old collection of
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Hematite on Quartz
Hematite on Quartz
$150
Wheal Cock, England
Abundant, well-formed crystals of metallic black Hematite measuring to 4 mm preferentially cover two prism
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Goethite on Quartz var. Amethyst (part polished)
Goethite on Quartz var. Amethyst (part polished)
$750
Levant Mine, England
A really different sort of specimen from Cornwall, England, in terms of both mineral associated habits and a
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Sphalerite with Quartz and Dolomite
Sphalerite with Quartz and Dolomite
$1,500
Alston Moor, England
Excellent individual, complex and lustrous black Sphalerite crystals to 1.5 cm are scattered over an elongated
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Pyromorphite on Coronadite
Pyromorphite on Coronadite
$8,000
MMM Mine, Australia
A magnificent cabinet specimen of lime and oil green Pyromorphite crystals on black Coronadite from the MMM
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Cassiterite
Cassiterite
$400
St. Michael's Mount, England
St. Michael's Mount is a spectacular tidal island linked to the mainland by a short causeway. The
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Cassiterite
Cassiterite
$900
Krásno, Bohemia
The mining district around Krásno in the Horní Slavkov district of the Czech republic was a tin-tungsten
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Quartz
Quartz
$1,500
Mount Ida, USA
Mention Arkansas to any mineral collector and their first thought is Quartz. OK, if you don’t then there
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Pyromorphite on Coronadite
Pyromorphite on Coronadite
$10,000
MMM Mine, Australia
This magnificent cabinet specimen of oil green Pyromorphite on black Coronadite is from the MMM mine at Broken
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Tausonite with Lamprophyllite and Aegirine
Tausonite with Lamprophyllite and Aegirine
$200
Murunskii Massif, Russia
I have to be honest and say, if this specimen were entering a Beauty and the Beast contest, it would sit more
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Spinel
Spinel
$4,500
Luc Yen, Vietnam
The Luc Yen mine in Yenbai Province, Vietnam, works a deposit rich in various gem minerals, one of which is
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Groutite
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
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
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
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
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
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
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
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
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
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
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
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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