Oxides and Hydroxides

 

319 results

Hematite
$850
 Cavradi Gorge, Grischun
A magnificent small miniature, classic Iron Rose Hematite with multiple-stacked hexagonal plates that form a
Hematite
$200
 Cavradi Gorge, Grischun
A superb large thumbnail Hematite forms multiple-stacked, intense steely-black hexagonal plates with a bright,
Hematite with Rutile on Quartz
$250
 Cavradi Gorge, Switzerland
A beautiful small cluster of bright, black metallic Hematite crystals forming Iron Roses with burnt orange
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.
Hematite with Rutile on Quartz
$250
 Cavradi Gorge, Grischun
A most elegant large thumbnail/small miniature of Hematite forming a curved group of intergrown Iron Rose
Tyrolite, Tangdanite, Erythrite and Azurite
$1,500
 Geyer - Silberberg District, North Tyrol
A highly brecciated specimen interwoven with fracture and pore-filled copper and cobalt mineralisation. 
Brookite on Quartz
$700
 Switzerland, Europe
A delightful single terminated Brookite crystal emerges from a prism face of a glassy, part Quartz crystal
Cassiterite
$750
 Horni Slavkov (Schlaggenwald), Czech Republic
Beautiful lustrous black metallic Cassiterite crystals form an unusual multi-peaked specimen, resulting from
Hematite with Rutile
$150
 Cavradi Gorge, Grischun
A beautiful thumbnail of thin gemmy blades of burnt orange Rutile laying flat against a 1.8 x 1.7 x 0.3 cm
Cassiterite
$1,500
 Horni Slavkov (Schlaggenwald), Czech Republic
This beautifully aesthetic cluster of superb Cassiterite crystals will make a real show-stopper for many good
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
Cassiterite with Topaz and Hübnerite
$500
 Horni Slavkov (Schlaggenwald), Czech Republic
A beautiful small miniature of Cassiterite with Topaz and Hübnerite from Horní Slavkov in the Karlovy Vary
Quartz var. Amethyst
$250
 Horni Slavkov (Schlaggenwald), Czech Republic
A nice elongated cluster of Amethyst Quartz, with a little attached etched snow-white Quartz, from Horní
Cassiterite
$1,250
 Horni Slavkov (Schlaggenwald), Czech Republic
A gorgeous weighty cluster of lustrous black metallic Cassiterite crystals from Horní Slavkov in the Czech
Cassiterite
$120
 St. Michael's Mount, England
A compact miniature which aptly demonstrates key mineralisation at the iconic landmark of St. Michael's Mount
Cassiterite with Wolframite
$250
 Goonbarrow China Clay Pit, England
Black granular Cassiterite and lustrous black blades of Wolframite richly cover and pervade a block of remnant
Goethite ps. after Marcasite
$250
 Wapping Mine, England
Cogwheel-like, angular crystals of rusty to dark chocolate-brown Goethite form excellent pseudomorphs after
Crednerite
$300
 Torr Works Quarry, England
Black platy crystals of the copper-manganese oxide, Crednerite, are intermixed with black sooty manganese
Hematite var. Specularite
$200
 Florence Mine, England
A classic example of Specularite, the metallic bladed variety of Hematite from Florence mine near Egremont in
Romanèchite
$350
 Adam Heber Mine, Saxony
A fine small miniature of botryoidal Romanèchite from the Adam Heber mine near Neustädtel in Saxony,
Pyrolusite
$850
 Eisenzecher Zug Mine, North Rhine-Westphalia
A very fine and beautifully crystallised Pyrolusite from the Eisenzecher Zug mine at Eiserfeld in North
Manganite
$3,000
 Ilfeld, Germany
A superb specimen of excellent black metallic Manganite crystals from the classic locality of Ilfeld at
Hematite ps. after Magnetite var. Martite
$600
 Payún volcano, Mendoza Province
A stunning and classic pseudomorph of Hematite after Magnetite from Payún volcano in Mendoza Province,
Goethite coating Cerussite after Anglesite
$1,250
 Block 14, Australia
A really superb pseudomorph of Cerussite after Anglesite coated in very dark chocolate-brown Goethite, from
Hematite
$1,500
 Schmiedeberg, Saxony
A hillocky, long and narrow Hematite and milky Quartz matrix, richly coated with micro, sub-mm Hematite
Hematite pseudomorph after Calcite
$2,800
 Harz, Germany
A superb and highly unusual specimen of Hematite pseudomorphing after Calcite from the Harz region of Lower
Goethite
$1,250
 Hollister Zug, Rhineland-Palatinate
A stockwork of thin carbonate veins, probably Calcite or Dolomite, form a honeycomb structure of individual
Lepidocrocite
$1,200
 Siegen, North Rhine-Westphalia
Labelled in the Archduke and Rumpff collections as Goethite, this small miniature has an area of
Hematite var. Pencil Ore
$200
 Furness Region, Cumbria
The variety of Hematite termed Pencil Ore from the Furness Region of Cumbria, England has a fibrous
Goethite on Quartz
$200
 Restormel Royal Iron Mine, England
Based on the attached faded copperplate, hand written label, this is an old time Goethite on Quartz from the
Hematite and Quartz
$550
 Florence Mine, England
A splendid small cabinet specimen of smoky double terminated Quartz crystals overlaying a bed of finely
Cuprite
$450
 Wheal Gorland, England
An interesting specimen of micro-crystallised Cuprite which cements brecciated fragments and shards of
Libethenite on Quartz
$450
 Phoenix United Mine, Cornwall
An excellent specimen of deep bottle-green Libethenite crystals richly lining shallow open vugs in a
Cassiterite
$300
 St Agnes, Cornwall
A roughly 3 x 1.5 cm area of nicely crystallised Cassiterite crystals on a mid-grey killas matrix, from the
Rockbridgeite-Hentschelite var. Andrewsite
$400
 Phoenix United Mine, Cornwall
The classic Cornish mineral Andrewsite is actually a mixture of Rockbridgeite and Hentschelite with minor
Chrysoberyl
$750
 Ambatondrazaka District, Toamasina Province (Tamatave)
A beautiful acidic apple-green chevroned-array of Chrysoberyl crystals forming a flat platy specimen from the
Hematite
$1,200
 Nador, Oriental Region
A highly aesthetic and unusual Hematite specimen from Nador in the Oriental Region of Morocco, also referred
Cuprite with Olivenite
$2,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A pair of magnificent, deep burgundy, octahedral Cuprite crystals, together with one partly intergrown smaller
Siderite on Hematite
$600
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Siderite is yet another common mineral at Tsumeb, but rare as well crystallised specimens suitable for
Limonite pseudomorph after Pyrite
$500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A matrix-free pseudomorph of Limonite after cubic Pyrite crystals.  The larger crystal measures 3.2 x 2.7
Siderite with Goethite on Germanite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A quite gorgeous small display specimen of superbly crystallised Siderite richly covering lustrous black
Mottramite
$2,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A stunning cabinet display specimen composed almost entirely of Mottramite occurring as black
Cuprite
$1,250
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A choice, tightly clustered group of three or four intergrown gemmy claret-red Cuprite crystals on a bed of
Cuprite var. Chalcotrichite on Native Copper
$350
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A small curving branch of arborescent Native Copper forms crude crystals with an infilling of dense
Green Anglesite on Goethite
$1,200
 MMM Mine, Australia
Green coloured Anglesite (lead sulphate) is a great rarity from the Broken Hill mines in New South Wales,
Cassiterite
$200
 Bunny Mine, England
A superb miniature of highly lustrous micro-crystals of Cassiterite densely pervading a micro-stockwork of
Cuprite with Native Copper
$500
 Wheal Gorland, England
Beautiful cubic crystals of Cuprite intergrown with Native Copper form a porous granular cabinet specimen
Chalcoalumite, Ajoite and Brochantite on Native Copper and Cuprite
$100
 New East Wheal Russell, England
A complexly mineralised miniature displaying Chalcoalumite (hydrous Al-Cu sulphate), Ajoite (hydrated