Oxides and Hydroxides

 

370 results

Cuprite on Dolomite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A lustrous maroon red crystal of Cuprite measuring to 9 mm sits on a matrix of creamy Dolomite crystals from
Cuprite
$600
 Tsumeb Mine, Namibia
A super-rich miniature of crystallised Cuprite covering the top surface of a Goethite-Limonite gossan from
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
Paradamite
$1,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A choice, large thumbnail specimen of the zinc arsenate hydroxide Paradamite, a very rare species from the
Cuprite coated with Malachite
$700
 Andrássy II. Mine, Borsod-Abaúj-Zemplén Co.
A well-formed cuboctahedral crystal of Cuprite measuring to 3.2 cm dominates this small cabinet specimen, all
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
Quartz with Hematite and Calcite
$900
 Haile Moor Mine, England
A classic west Cumbrian specimen of well-developed Quartz crystals to 2 cm, substantially included by
Liroconite
$800
 Wheal Gorland, England
A granular, large thumbnail matrix of iron-stained milky Quartz is richly coated with intergrown blades of
Brookite with Albite
$250
 Twll Maen Grisial, UK
The area around Prenteg in North Wales is famous for its titanium dioxide polymorphs, Anatase, Brookite and
Cassiterite
$350
 South Crofty Mine, England
A rich Cassiterite from South Crofty mine at Pool, about mid-way on the A30 between Camborne and
Rutile (twin)
$1,750
 Graves Mountain, USA
Mention Graves Mountain and just one mineral comes to mind, Rutile.  Situated in Lincoln County, Georgia,
Zincite with Franklinite and Calcite
$1,400
 Franklin, USA
Rounded crystals of dark cherry red-brown Zincite protrude from a creamy Calcite matrix pervaded with metallic
Cuprite
$300
 Bisbee, Arizona
A rich miniature of sub-mm, burgundy-red Cuprite forms a mixed crystalline and granular deep crust over a
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
Bixbyite
$900
 Thomas Range, Utah
Two excellent mirror bright jet-black cubic crystals of Bixbyite measuring to 6 mm with sawtooth corner and
Cuprite variety Chalcotrichite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rich miniature red intergrown acicular Chalcotrichite, the acicular variety of Cuprite.  Micro-felty
Chrysoberyl
$750
 Ambatondrazaka District, Toamasina Province (Tamatave)
A beautiful acidic apple-green, chevroned-array of Chrysoberyl crystals forming a flat platy specimen from the
Opal var. Boulder Opal
$3,500
 Queensland, Australia
There is no denying when Boulder Opal is good, it is magnificent! Boulder Opal is a variety of Precious Opal
Manganite
$8,000
 Ilfeld, Germany
Manganite from the deposit at Ilfeld in the south-eastern Harz mountains of Germany is one of Western Europe’s
Cassiterite (vein section)
$300
 Illogan, England
This small cabinet specimen of Cassiterite, crystallised within a section of vein material, is labelled as
Quartz variety Eisenkiesel on Hematite
$350
 Florence Mine, England
An 8.8 x 5.0 cm plate of sooty coloured Hematite richly covered with equant bipyramidal Quartz crystals makes
Anatase with Quartz, Albite and Calcite
$1,200
 Prenteg, Wales
Prenteg is famous for the occurrence of the trimorphous minerals Anatase, Brookite and Rutile, each a
Anatase
$500
 Prenteg, Gwynedd
Prenteg is famous for the occurrence of the trimorphous minerals Anatase, Brookite and Rutile, each a
Goethite
$340
 Botallack Mine, England
A striking display of black, botryoidal Goethite with a sparkling drusy surface with a well-defined internal
Schneiderhöhnite
$1,250
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A well-formed tightly clustered group Schneiderhöhnite crystals with excellent terminations of a lustrous
Goethite on Smithsonite
$850
 Tsumeb Mine, Namibia
Bright black botryoidal druses of lustrous Goethite coat hidden Smithsonite crystals to 1.4 cm sitting on a
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
Liroconite with Clinoclase
$2,500
 Wheal Gorland, England
Liroconite, a hydrated copper aluminium arsenate hydroxide, carries a kudos within Cornish collections that no
Libethenite
$600
 Wheal Phoenix, England
The copper phosphate Libethenite is a well known species from the mining complex at Wheal Phoenix close to the
Hematite var. Kidney Ore
$300
 Goose Green Mine, Cumbria
A delightful mamillary mound of Kidney Ore, the botryoidal variety of Hematite.  The Hematite forms an
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
Calcite and Hematite
$200
 Egremont, England
An aesthetic domed specimen of 3 to 5 mm nail-head Calcite crystals from the Egremont iron mining district in
Hausmannite
$6,000
 N'Chwaning Mines, South Africa
Wow!  This is one beast of a Hausmannite, a beautiful beast I hasten to add!  From the famous
Schneiderhöhnite with Quartz and Tennantite
$2,500
 Tsumeb Mine, Namibia
This small miniature of the very rare iron arsenate Schneiderhöhnite in a matrix of mixed Tennantite and
Hematite
$1,000
 Wessels Mine, South Africa
A bright metallic steely blue grey crystal of Hematite measuring to 3.7 cm, displaying a pyramidal form
Native Copper with Cuprite
$550
 Wheal Unity, England
A rich, crudely crystallised vuggy and porous mass of Native Copper is richly pervaded with octahedral Cuprite
Cuprite with Native Copper
$500
 Nizhnetagilskii Massif, Russia
This compact and chunky miniature of a vuggy yet solid mass of Native Copper is pervaded with splendid
Fluorite with Hematite, Siderite and Chalcopyrite
$1,000
 Carn Brea Mine, England
Carn Brea is a prominent elongated ridge of granite adjacent to the A30 road and railway line between Camborne
Quartz with Hematite var. Eisenkiesel
$2,500
 Frizington, Cumbria
The mineralogy of the west Cumbrian iron mines tends to be simple, yet the specimens produced represent some
Cerussite ps. after Anglesite with Coronadite
$950
 Broken Hill, Australia
This large cabinet size Cerussite pseudomorphing after Anglesite and coated with Coronadite is a Broken Hill
Pyromorphite on Coronadite
$800
 MMM Mine, Australia
The famous MMM mine at Broken Hill in Australia worked the line of lode orebody and is situated within the
Zincite
$9,500
 Franklin Mine, USA
The Franklin mines in Sussex County, New Jersey, exploited one of the most complex orebodies on Earth, famed
Hematite ps. after Magnetite var. Martite
$500
 Payún Matrú volcano, Argentina
This is quite an amazing miniature specimen composed of aligned rows and columns of superbly crystallised
Cassiterite
$400
 Bejewans, England
Although I dearly love these specimens of Cassiterite from the famous deposit of the Bejewans Tin Stream Works
Scheelite on Zinnwaldite
$450
 Cínovec / Zinnwald, Saxony & Ústí Region
An excellent miniature displaying a dense cluster of sharply formed Scheelite crystals set in a matrix of
Adamite on Calcite
$750
 Lavrion, Attikí Prefecture
The zinc arsenate Adamite forms superb specimens in the Lavrion mining district of the Attica Peninsula in
Libethenite
$850
 M'sesa Mine, DR Congo
A rich and stunning group of dark leaf green Libethenite crystals line a shallow, open vug in a matrix of
Hematite
$700
 Hematite occurrence, Morocco
Many present-day collectors are familiar with the blue Baryte specimens being produced form this locality,