Oxides and Hydroxides

 

163 results

Calcite with Mottramite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Seldomly seen now, a tight cluster of gemmy nail head Calcite crystals shot through with dark olive-green
Mottramite with Dolomite
$1,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A curious, little finger-sized (and shaped) stalactite of highly lustrous pale lilac Dolomite speckled with
Adamite with Tsumcorite
$450
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An interesting specimen of dark grey Quartz-rich matrix invested with various sulphides including Galena. On
Malachite with Cuprite on Dolomite
$2,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Strings of bright maroon Cuprite crystals of 2 to 4 mm and rosettes of deep emerald-green Malachite to 8 mm
Hematite with Rutile
$2,250
 Cavradi Gorge, Switzerland
A choice specimen of a lustrous black well-formed group of bladed Hematite crystals measuring to a good
Hematite
$7,500
 Fibbia Mountain, Switzerland
A spectacular and beautiful group of highly lustrous, metallic black Hematite crystals composed of blades in
Cuprite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A fine intergrown crystal specimen of mostly octahedral Cuprite crystals measuring to 5mm. with crystalline
Cuprite variety Chalcotrichite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rich small cabinet specimen of plush red intergrown acicular Cuprite in the classic variety Chalcotrichite
Cuprite
$850
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A neat thumbnail cluster display of cubo-octahedral  Cuprite crystals, measuring to 1.2cm, with a deep
Malachite
$150
A limonite-rich Quartz and Chalcopyrite veinstone has a central 3.0 x 1.5 cm vug richly lined with silky
Creedite
$3,500
 Navidad Mine, Mexico
This is an amazing example of Creedite, a calcium aluminium sulphate fluoro-hydroxide, occurring as a
Hübnerite
$250
A rich 7 cm long seam of reddish-bronze to clove-brown Hübnerite crystals with a bright metallic lustre
Corundum Var. “Ruby”
$950
 Froland, Norway
An opaque,  lustrous and intense cranberry-red hexagonal “Ruby” crystal partly embedded in a small block
Quartz with Hematite
$750
A gorgeous small cabinet specimen of double terminated “Smoky” Quartz on Hematite, the latter in the habits of
Goethite with Quartz
$300
A splendid small cabinet example of a Goethite-Quartz vein section from the Restormel Royal Iron Mine at
Cuprite
$600
A magnificent cubic Cuprite crystal measuring 8 x 8 x 7 mm nestled with other well formed but smaller crystals
Dolomite on Hematite
$250
 Egremont, Cumbria
An excellent specimen of botryoidal Hematite, variety “kidney ore” coated with finely crystallised Hematite of
Bismuthinite with Wood Tin, Chalcopyrite and Quartz
$7,500
A stunning museum quality specimen of long acicular needles of the bismuth sulphide Bismuthinite which spans
Cuprite
$750
Intergrown crystalline Cuprite crystals form a sponge-like porous specimen from Marke Valley mine close to
Cuprite Var. “Chalcotrichite”
$750
A charming “old time” specimen-rich in translucent, Burgundy-red Cuprite crystals and felt-like coatings of
Baryte on Hematite
$200
Blades of pure snow-white Baryte to 4.0 x 2.0 x 0.3 cm form an intergrown bed which covers an underlying
Cuprite Var. “Chalcotrichite”
$650
From a Victorian collection, this lovely example of the acicular habit of Cuprite, “Chalcotrichite”, is from
Cuprite
$300
 Mashamba West Mine, Katanga Copper Crescent
Two lustrous metallic Cuprite crystals sit in a matrix of granular Cuprite and micro-crystalline Chrysocolla
Cassiterite
$1,600
 Viloco Mine, Bolivia
A superb specimen of excellent Cassiterite crystals with great lustre and a rich dark brown colour with a hint
Bixbyite
$900
 Thomas Range, Utah
Two excellent mirror bright jet-black cubic crystals of Bixbyite measuring to 6mm with corner and edge
Hematite
$850
 Ouro Preto, Brazil
A beautiful pair of hexagonal stacked crystals of Hematite form two rosettes slightly angled to one another,
Cassiterite
$250
 Wheal Kitty, England
Lustrous dark brown crystals of intergrown Cassiterite measuring to around 1cm with white Quartz crystals on a
Hematite
$1,250
 Rio Marina, Italy
A neat display of lustrous black and metallic grey intergrown crystals of Hematite from the classic iron
Cuprite
$1,900
 Wheal Druid, England
Well-developed very lustrous mostly octahedral crystals of Cuprite measuring to 4-5mm invest a white vein
Hübnerite with Quartz
$750
 Mundo Nuevo Mine, La Libertad Department
A very pleasing specimen of contrasting lustrous black prismatic crystals of Hübnerite measuring to
Hübnerite with Quartz
$850
 Pasto Bueno District, Peru
A neat aesthetic specimen of excellent broad-bladed metallic grey-black crystals of Hübnerite measuring
Cassiterite
$250
 Llallagua, Bolivia
A very rich specimen of Cassiterite from the sulphide and tin mining area of Llallagua, Bolivia. Fine
Cuprite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Mirror-bright silvery Cuprite crystals to about 3-4mm completely coat an elongated, hillocky and vuggy plate
Quartz "Japan Law Twin"
$2,500
A splendid, slightly smoky but almost colourless Quartz “Japan Law Twin” is perched towards one end of an
Cuprite
$600
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An excellent miniature of beautifully crystallised Cuprite lining a ribbon-like vug through the centre of a
Hematite var Iron Rose
$600
 A classic Iron Rose from Switzerland displaying a typical black mirror bright metallic lustre from
Cuprite with Native Copper
$1,200
 Liskeard, England
A fine classic Cornish Cuprite specimen from Liskeard, Cornwall, probably Minions-Linkinhorne mining area.
Cuprite variety Chalcotrichite
$700
 South Caradon Mine, England
A neat display of Cuprite variety Chalcotrichite forming two bright red nests of capillary crystals displayed
Hematite
$140
A pleasing nobbly almost stalactitic display of onion-layered red-brown Hematite from the Ulverston Iron
Hematite with Dolomite and Quartz
$250
 Florence Mine, England
A neat detachable two-part specimen of red-brown Hematite Kidney Ore and a section of Kidney Ore
Cassiterite with Chalcopyrite
$450
 St. Agnes, England
An excellent vein section displaying dark grey side-cheeks of granular Cassiterite with Killas
Hübnerite with Quartz and Pyrite
$1,500
 Baia Sprie, Romania
A pleasing miniature specimen of intergrown lustrous black bladed crystals of Hübnerite, measuring to
Cuprite
$500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A matrix of heavily iron-stained gossan is pervaded with acicular Quartz crystals and Cuprite, taking the form
Hematite
$1,250
 N'Chwaning Mines, South Africa
A choice miniature of intergrown crystals of Hematite, up to 1.5 cm across, from the N'Chwaning mines, South
Hematite Iron Rose
$950
 Central St. Gotthard Massif, Switzerland
Several bright metallic classic Iron Roses measuring to 2cm are clustered over a creamy white Adularia matrix
CUPRITE
$700
An excellent small cabinet specimen of Cuprite from the classic and evocative mining district of Bisbee in the
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”)
Columbite-(Mn)
$7,500
 Elizabeth R Mine, USA
A rare specimen of Columbite-(Mn) displaying excellent bladed crystal form in parallel with the extensive