Oxides and Hydroxides

 

219 results

Crednerite
$3,000
 Torr Works Quarry, England
This specimen of Crednerite, a rare copper-manganese oxide, was found in the manganese pods within the
Hematite with Quartz
$450
 Florence Mine, England
A 1 to 2 mm thick (yet strong) plate of Hematite is totally covered on opposite faces with jet-black, highly
Cassiterite Var. “Wood Tin” with Quartz and Dolomite
$500
 Cornwall, England
A very good example of the variety of Cassiterite known as “Wood Tin”, due to its concentric banded
Crednerite with Hydrocerussite, Malachite and Calcite
$3,500
 Torr Works Quarry, England
An excellent specimen of the rare copper-manganese oxide Crednerite from the famous Torr Works quarry at
Goethite after Cerussite Pseudomorph Anglesite
$600
 Broken Hill, Australia
 A well-defined replacement of black-dark grey and red-brown  Goethite after Cerussite white
Gaudefroyite with Baryte and Andradite
$7,500
 Black Rock Mine, Northern Cape
A rich crystal specimen of lustrous black Gaudefroyite crystals measuring to 9 mm with white Baryte and deep
Sturmanite with Hausmannite
$1,600
 N'Chwaning Mines, South Africa
A flat plate of cryptocrystalline Sturmanite is completely coated with flattened hexagonal pagoda-like
Hübnerite with Quartz
$4,500
 Mundo Nuevo Mine, La Libertad Department
A superb specimen of lustrous black bladed striated crystals of Hübnerite measuring to 2.5 cm,
Brunogeierite
$150
 Carboire, Occitanie
Brunogeierite a rare Germanium-Iron Oxide as metallic grey areas intergrown with Sphalerite in a polished
Cassiterite
$350
 Bojewan Tin Stream Works, Cornwall
There is no disguising this specimen is an ugly brute, but it is a Cornish tin stream Cassiterite which makes
Montgomeryite
$1,500
 Tip Top Mine, USA
An excellent specimen of the very seldom encountered species Montgomeryite, a calcium-magnesium-aluminium
Liroconite
$800
 Wheal Gorland, England
A granular, large thumbnail matrix of iron-stained milky Quartz, is richly coated with intergrown blades of
Cuprite with Cuprite var. Chalcotrichite
$500
 Wheal Unity, Cornwall
Hackly intergrown granules of silvery deep-red Cuprite cover a porous brecciated Quartz veinstone. Richly
Goethite with Quartz
$450
 Restormel Royal Iron Mines, England
A beautifully aesthetic specimen of botryoidal Goethite forming undulating mid to dark chocolate-brown mounds
Cassiterite
$1,500
 Trevaunance Mine, Cornwall
A splendid bed of lustrous brownish-black Cassiterite crystals to 1.7 cm, covering a milky-Quartz fracture
Cuprite with Malachite
$500
 Rudabánya, Borsod-Abaúj-Zemplén Co.
Two specimens of intergrown octahedral and dodecahedral Cuprite crystals measuring to 1.1 cm coated in
Cassiterite
$600
 Horní Slavkov, Karlovy Vary Region
A classic twinned crystal of lustrous black Cassiterite  measuring to 2.4 cm from Horni Slavkov,
Cassiterite
$350
 Erzgebirge, Saxony
A classic thumbnail specimen of lustrous black twinned Cassiterite from Erzgebirge, Germany, measuring overall
Romanèchite
$350
 Adam Heber Mine, Saxony
Specimens of Manganese oxides are seldom represented in collections. The specimen of Romanèchite we have
Cassiterite
$500
 Horní Slavkov, Karlovy Vary Region
Classic lustrous black twinned crystal of Cassiterite measuring to 3.4 cm from Horní Slavkov, Czech
Valentinite
$300
 Porvenir mine, Oruro Department
Five specimens of well-formed crystals of Valentinite from the Porvenir MIne. Bolivia. Measurements are
Columbite-(Fe) with Microlite
$7,500
 Mawi pegmatite, Nuristan Province
A fine pegmatite specimen displaying a central area rich in bladed lustrous black Columbite-(Fe) intergrown
Azurite with Malachite pseudomorph after Azurite
$8,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A spectacular and beautiful small cabinet specimen of glassy and gemmy deep blue Azurite crystals, silky
Cuprite
$750
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A very rich crystal specimen of Cuprite displaying intergrown crystals measuring to 1cm on a
Szenicsite with Powellite and Molybdenite
$7,500
 Jardinera No 1 Mine, Chile
A rare and spectacular specimen of the extremely rare mineral Szenicsite with Molybdenite and copper-bearing
Hematite with Rutile and Quartz
$850
 Cavradi Gorge, Switzerland
A classic Alpine Cleft specimen from the Cavradi Gorge, Switzerland. Characteristic mirror bright
Cuprite
$300
 Phoenix United Mine, England
Abundant intergrown crystals of maroon coloured Cuprite measuring in the 1mm area on a typical
Cuprite with Native Copper
$500
 Camborne-Redruth, England
A rich crystal specimen of sparkling intergrown octahedra of Cuprite measuring around 4-5mm with areas of
Cuprite with Dolomite
$6,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Well-formed clusters and single crystals of deep maroon red Cuprite are finely contrasted on the
Cuprite
$3,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Well-developed lustrous complex crystals of Cuprite measuring to 1cm have formed in cavities on a
Cuprite with Chrysocolla
$3,500
 Mashamba West Mine, Katanga Copper Crescent
 A classic specimen of Cuprite crystals from the Mashamba West Mine, Dem Rep of Congo. Crystals of
Lepidolite with Quartz
$4,500
 Minas Gerais, Brazil
Beautiful pink platy crystals of diamond-shaped Lepidolite in a stacked habit measuring to
Corundum Var. Ruby with Dravite in Marble
$2,000
 Jegdalek Ruby Deposit, Afghanistan
A charming miniature composed of an aesthetic fuschia-pink Corundum crystal, variety Ruby, perched on a small
Quartz with Hematite
$450
 Cavradi Gorge, Grischun
A clear and almost colourless terminated Quartz crystal which at one side is embedded with a platy
Rutile
$250
A well terminated metallic dark chocolate-brown crystal of Rutile measuring 2.0 x 1.7 x 1.2 cm which protrudes
Quartz with Dolomite on Hematite
$1,250
 Florence Mine, England
Although the famous Florence mine close to Egremont in west Cumbria produced less than ten different mineral
Cuprite
$200
 Wheal Gorland, England
A limonite stained Quartz veinstone is shot-through and very richly covered with lustrous octahedral crystals
Cassiterite after Orthoclase
$600
 Wheal Coates, England
A Cornish classic of dark brown granular Cassiterite completely replacing a Carlsbad twinned
Cassiterite with Pyrite
$750
 Levant Mine, England
A very rich specimen of densely intergrown crystals of brown Cassiterite crystals with Quartz overgrown by a
Hematite with Quartz
$3,500
 Beckermet Mine, England
A very fine specimen of classic Specular Hematite with gemmy well-developed Quartz crystals. Crystals of
Cuprite
$4,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Very rich lustrous crystal specimen of deep maroon red Cuprite crystals densely intergrown, with individual
Cuprite with Native Copper
$300
 Bisbee, Arizona
An attractive 4 x 3 cm group of metallic burgundy-red Cuprite crystals to about 6 mm in a matrix of earthy
Cassiterite
$3,000
 Horni Slavkov (Schlaggenwald), Czech Republic
A large well-formed twinned crystal of Cassiterite measuring overall to nearly 5cm displays a lustrous black
Valentinite with Galena
$2,500
  Pribram, Czech Republic
Pearly lustred white crystalline ribbons and scattered aggregates of intergrown broad tabular Valentinite, on
Valentinite with Galena
$1,200
  Pribram, Czech Republic
Translucent white to pale brown bladed-lath-like crystals of Valentinite measuring to 4mm are densely
Senarmontite
$300
 Djebel Haminate Mine, Algeria
A terrific thumbnail of the antimony oxide Senarmontite (Sb2O3) as a cluster of bipyramidal, light grey
Cuprite with Dolomite and Mimetite
$700
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A stunning and very rich specimen of Cuprite from the Tsumeb mine with crystals and platy crystalline areas
Zincolivenite
$5,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Large intergrown lustrous crystals, to about 7 mm across, of Zincolivenite, cover the surface of a brick-red,