Oxides and Hydroxides

 

440 results

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
Quartz var. Eisenkiesel on Hematite
$400
 Margaret Mine, Cumbria
A most attractive small cabinet specimen of lustrous, smoky orange Eisenkiesel crystals scattered over an
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
Cuprite
$1,300
 Wheal Gorland, England
A very rich crystallised cabinet specimen of intergrown, deep maroon octahedral Cuprite crystals measuring to
Quartz with Hematite
$650
 Frizington, England
An excellent example of equant, well developed and glassy, double-terminated Quartz crystals included with
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
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
Cassiterite and Fluorite on Quartz
$350
 Krupka (Graupen), Bohemia
Wow! A delightful and quite different combination of lustrous black Cassiterite crystals alongside tiny,
Calcite on Quartz var. Chalcedony
$400
 Hüttenberger Erzberg, Carinthia
Pale milky-white, double terminated scalenohedral Calcite crystals to about 5 mm are preferentially developed
Rutile
$850
 Rauris Valley, Austria
A fine cabinet specimen of red to dark maroon Rutile crystals which range from micro to 6 mm, with many
Manganite
$900
 Ilfeld, Germany
A compact group of metallic, lustrous black Manganite crystals to 2.5 cm with a little white Baryte from the
Hematite
$450
 N'Chwaning II Mine, South Africa
This miniature crystallised Hematite is from the world-famous N'Chwaning II mine in the Kalahari Manganese
Siderite with Rutile
$1,200
 Furka basis tunnel (east section), Uri
An excellent cluster of dappled, yellowish-caramel brown Siderite forming intergrown rhombic crystals to 3 cm.
Adamite
$750
 Tsumeb Mine, Namibia
We are all familiar with Adamite from many locations and indeed it is always a great mineral to find or have
Magnetite
$700
 Dashkesan Co-Fe Deposit, Dashkesan District
Large, slightly flattened octahedral Magnetite crystals sit either side of a grey-green quartzite matrix from
Mottramite
$900
 Tsumeb Mine, Namibia
This lovely large miniature of pistachio green Mottramite is from the Tsumeb mine in the Oshikoto Region of
Willemite var. Troostite with Zincite and Franklinite
$400
 Sterling Mine, New Jersey
Excellent Willemite crystals of the variety Troostite compose the bulk of this large miniature from one of
Native Copper with Cuprite
$350
 St Day United Mines, Cornwall
The original Poldice mine was mining tin as early as 1748, becoming part of the St. Day United Mines group
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
Hematite
$350
 Cleator Moor, Cumbria
Rather deceptively, Cleator Moor is both a town and a civil parish, but not a moor!  It is located about
Rutile
$250
 Modriach, Styria
A well terminated, metallic dark chocolate-brown crystal of Rutile measuring 2.0 x 1.7 x 1.2 cm protrudes from
Cassiterite and Arsenopyrite on Quartz
$300
 Yaogangxian Mine, China
Many a specimen from the Yaogangxian mine in Yizhang County, Hunan Province, China, passes though our hands
Magnetite
$300
 Possibly [Ivrea], Piedmont
An interesting miniature of Magnetite from the Aosta Valley in Piedmont, Italy. We are most familiar with
Cassiterite with Scheelite and Muscovite
$500
 Mt. Xuebaoding, Sichuan Province
If this quite fabulous Cassiterite with Scheelite and Muscovite is anything to judge by, Mount Xuebaoding
Spinel with Diopside
$250
 Gon phlogopite deposit, Sakha Republic
A compact large miniature packed with large black Spinel and green Diopside crystals, cemented by a minor
Spinel with Chondrodite and Muscovite in Calcite
$200
 Edenville, New York
An interesting miniature from an interesting and rare locality. Edenville-Town of Warwick is a roughly
Hematite with Andradite Garnet
$500
 Wessels Mine, South Africa
Wowsers! What a truly remarkable and astonishing large cabinet specimen of wonderfully crystallised metallic
Cafarsite
$3,500
 Wanni Glacier, Switzerland
A very fine example of the rare calcium iron arsenite Cafarsite from its type locality at the Wanni Glacier in
Heterogenite with Malachite
$350
 L'Etoile du Congo Mine, Katanga Copper Crescent
This showy cabinet specimen of beautifully crystallised Heterogenite and Malachite is from the L'Etoile du
Cassiterite
$2,500
 Horni Slavkov (Schlaggenwald), Czech Republic
A part of a large twinned Cassiterite crystal displaying the twining to advantage by prominent re-entrant
Ferberite
$450
 Cínovec/Zinnwald, Saxony & Ústí Region (Bohemia)
A mass of greyish-black Ferberite from Cínovec-Zinnwald, the orebody which spans the border between Germany
Hausmannite
$400
 Oehrenstock, Germany
A rich small miniature of the manganese oxide Hausmannite from its type locality at Oehrenstock in the Ilmenau
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
Hematite var. Kidney Ore
$800
 Florence Mine, England
The botryoidal variety of Hematite known as Kidney Ore was found throughout Florence mine, just east of the
Cassiterite var. Wood Tin with Quartz and Dolomite
$500
 Cornwall, England
A good example of the variety of Cassiterite known as Wood Tin, due to its concentric banded appearance. This
Smoky Quartz with Cassiterite on Zinnwaldite
$500
 Cínovec/Zinnwald, Saxony & Ústí Region (Bohemia)
From the Cínovec-Zinnwald ore field which extends into both Germany and the Czech Republic, this Smoky Quartz
Hematite
$400
 Fibbia, Ticino (Tessin)
Parallel hexagonal plates of metallic silver-black Hematite, attached to a little milky Quartz, form a
Calcite with Limonite inclusions
$400
 Gillfoot Park Mine, England
Gillfoot Park mine was a little to the northwest of the town of Egremont in West Cumbria, England. As a
Cassiterite (twin)
$600
 Horní Slavkov, Karlovy Vary Region
A superb twinned crystal of highly lustrous black Cassiterite measuring to 2.4 cm from Horni Slavkov in the
Andrewsite (Hentschelite-Rockbridgeite-Chalcosiderite mixture)
$400
 Phoenix United Mine, Cornwall
The classic Cornish mineral Andrewsite is actually a mixture of Rockbridgeite and Hentschelite with minor
Nasonite in Datolite and Goethite
$300
 Torr Works Quarry, England
Nasonite is one of the Holy Grails from the rare oxychloride suite occasionally found in Torr Works quarry at
Cassiterite var Wood Tin (2 pieces)
$800
 Goss Moor, England
The fibrous variety of Cassiterite termed ‘Wood Tin’ is one of those great classics of Cornish mineralogy and
Cassiterite pseudomorph after Orthoclase
$600
 Wheal Coates, England
Wheal Coates at St Agnes in Cornwall is world famous for two things: its magnificent cliff-top engine house
Goethite with Quartz
$250
 Restormel Royal Iron Mine, England
The Restormel Royal Iron mine in Cornwall, England, had produced some of the most beautiful Goethite specimens
Hematite with Quartz and Calcite
$300
 Florence Mine, England
This fine miniature packs in many characteristics of the West Cumbrian orefield, nicely displaying specular
Hematite var. Pencil Ore
$200
 Furness Region, Cumbria
A striking cabinet specimen of superbly structured Pencil Ore, a variety of Hematite, from the Furness Region
Linarite with Cerussite
$1,300
 Red Gill Mine, England
One of the classic minerals associated with the Caldbeck Fells is Linarite from the Red Gill mine. This
Chalcoalumite, Ajoite, Brochantite on Native Copper and Cuprite
$100
 New East Wheal Russell, England
A complexly mineralised miniature displaying Chalcoalumite (hydrous aluminium-copper sulphate), Ajoite