Oxides and Hydroxides

 

451 results

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,
Rutile
$450
 Pfitsch Pass, Austria
This incredibly rich Rutile is from the famed Pfitsch Pass in Zillertal, North Tyrol, Austria.  It
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
Cassiterite
$250
 Wheal Pendarves, England
Instantly, on lifting this specimen from Wheal Pendarves, it is apparent a good proportion is Cassiterite
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
Cassiterite
$350
 Krásno, Bohemia
A large thumbnail/small miniature group of lustrous Cassiterite crystals from Krásno in the Karlovy Vary
Calcite with Pyrite
$2,500
  Pribram, Czech Republic
This superb miniature Calcite is from the Příbram Mining District in the Czech Republic.  Close
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
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”)
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
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
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
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
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
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
Magnetite
$400
 Kovdor Zheleznyi Mine, Northern Region
These oversize Magnetite crystals are appropriately from an over-size iron ore mine, the enormous open pit
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
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
Goethite
$450
 Schönbrunn, Saxony
An intriguing large miniature of Goethite from Schönbrunn in Saxony, Germany, having a compact columnar habit
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
Pyrochlore
$1,200
 Vishnevye Mountains, Southern Urals
Pyrochlore is a fairly complex oxide containing sodium, calcium, fluorine and niobium and is the niobium
Mottramite
$950
Mottramite was the first species I ever encountered from Tsumeb and so remains one of my favourite minerals
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
Hematite with Rutile and Quartz
$850
 Cavradi Gorge, Switzerland
A typical Alpine cleft specimen from Cavradi Gorge in the Curnera Valley, Grischun, Switzerland.
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
$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