Oxides and Hydroxides

 

424 results

Groutite
$600
 Emilie Mine (Bülten-Adenstedt Mine), Germany
Groutite is a rare manganese hydroxide that is known to form excellent crystallised specimens at the Emilie
Lepidocrocite
$750
 Herdorf, Germany
This small cabinet specimen is an excellent example of Lepidocrocite from the polymetallic mine at Herdorf in
Quartz with Hematite
$500
 Egremont, Cumbria
A fine example of double terminated Quartz crystals richly covering a bed of Specular Hematite from the iron
Cassiterite
$250
 Harriet Lode, UK
This rich large miniature specimen of bright, sparkling Cassiterite crystals of the variety known as Diamond
Cassiterite
$250
 Old Beam Mine, England
Looking at this small cabinet specimen of Cassiterite on a partly kaolinized granite matrix, it is apparent it
Cassiterite (3 specimens)
$350
 Geevor Mine, England
Three rich, run-of-mine Cassiterite ore specimens from Geevor mine at Pendeen, Cornwall, England.  The
Cassiterite
$300
 Camborne, England
This well crystallised Cassiterite comes with no specific mine name but is from the Camborne mining district
Titanite with Rutile, Actinolite and K Feldspar var. Adularia
$4,500
 Teufelsmühle, Salzburg
The mindat page shows an excellent photo by Günter Grundmann of the Teufelsmühle and to put it mildly, it
Cassiterite with Sphalerite and Quartz
$650
 Viloco Mine, Bolivia
This intriguing miniature Cassiterite with Sphalerite and Quartz is from the Viloco mine, a mine set in the
Hübnerite with Quartz
$3,500
 Mundo Nuevo, Peru
The manganese-tungsten oxide Hübnerite forms high quality crystals in the tungsten deposits close to the town
Cassiterite
$300
 Huanuni mine, Bolivia
Highly lustrous, metallic jet-black crystals of Cassiterite measuring to 1.5 cm form a miniature domed mass
Creedite
$2,000
 Santa Eulalia District, Chihuahua
It is interesting to note that of the 185 valid minerals listed in mindat from the Santa Eulalia District, in
Hematite
$800
 Rio Marina, Italy
One of the most well-known mineral species from the island of Elba is Hematite. This beautifully crystallised
Cuprite with Malachite
$3,500
 Andrassy II Mine, Hungary
The Andrássy II mine in north eastern Hungary has produced a rich suite of over sixty mineral species, Cuprite
Liroconite with Clinoclase
$250
 Wheal Gorland, England
A completely mixed small miniature of blue and green Liroconite, dark inky blue green Clinoclase and veinlets
Hematite var. Specularite
$200
 Florence Mine, England
Specularite is the black, crystallised variety of Hematite and this is a great miniature specimen, ideal for
Cuprite with Native Copper
$1,500
 Wheal Gorland, England
This fine small cabinet specimen of Cuprite and Native Copper crystals is from the world-famous Wheal Gorland
Cassiterite var. Wood Tin
$550
 Bojewan Placers, England
The variety of Cassiterite known as Wood Tin occurs at several localities throughout Cornwall, but the
Cuprite var. Chalcotrichite
$450
 South Caradon Mine, England
An old 19th-century miniature specimen of the Cuprite variety Chalcotrichite from the South Caradon mine which
Sphalerite with Quartz and Dolomite
$1,500
 Alston Moor, England
Excellent individual, complex, lustrous black Sphalerite crystals to 1.5 cm are scattered over an elongated
Quartz with Hematite
$650
 Frizington, England
A super example of equant, well developed and glassy, double-terminated Quartz crystals containing included
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
Zincite
$2,500
 Franklin, New Jersey
The famous Franklin-Ogdensburg mining district exploited one of the world’s most species diverse orebodies,
Quartz var. Eisenkiesel on Hematite
$300
 Florence Mine, England
A delicate, 1 to 2 mm thick plate of Hematite coated with micro-crystals of sparkling jet-black Specularite
Native Lead with Pyrochroite
$3,000
 Långban, Värmland
Although Långban mine has 314 recorded mineral species and is type locality to 76, it is for its Native Lead
Quartz on Hematite var. Specularite
$300
 Florence Mine, England
Fine granular massive Hematite forms the matrix of this excellent miniature of Quartz and Specularite from
Cassiterite in Mica
$350
 Wheal Owla (Wheal Owles), UK
A rare miniature of Cassiterite in Mica from Wheal Owla (aka Wheal Owles) at St. Agnes on the north coast of
Hematite on Quartz
$500
 Wheal Cock, England
Wheal Cock was part of the Botallack mine sett and is the type locality for Botallackite.  The surface
Cuprite with Chlorite
$1,200
 Wheal Gorland, England
A rib of Chloritized gossan Quartz with an extremely vuggy and porous structure is richly invested with
Leadhillite
$4,000
 Tsumeb Mine, Namibia
Carlton M. Davis was a well-known American collector who attended Yale and lived in Ohio; a collector whom
Goethite
$500
 Tsumeb Mine, Namibia
Goethite is a well-known common secondary mineral at Tsumeb, but rarely forms attractive specimens.  This
Cuprite
$500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A matrix of heavily iron-stained gossan, pervaded with acicular Quartz crystals and Cuprite, the latter taking
Rutile in Pyrophyllite
$600
 Champion Mine, California
Champion mine worked an Andalusite deposit, operating from 1922 until closing sometime during the 1930s when
Rutile
$750
 Graves Mountain, USA
Although many mineral species were found at the quarry on Graves Mountain, it is Rutile for which it is
Quartz var. Smoky Quartz
$6,000
This magnificent group of Smoky Quartz crystals is known to be from Switzerland although its specific locality
Hematite
$350
 Le Haycot, France
Le Haycot in the Brézouard Massif of St. Marie-aux-Mines, France is best known for its fine specimens of
Cassiterite
$500
 Krásno, Bohemia
The mining district around Krásno near to Horní Slavkov in Bohemia in the Czech Republic produced tin and
Manganite
$600
 Ilfeld, Germany
This charming thumbnail Manganite is from the iconic European locality of Ilfeld in the German state of
Rutile on Quartz
$1,500
 Serra das Éguas, Brazil
This fantastic small cabinet specimen is a gorgeous combination of Rutile and Quartz from Serra das Éguas in
Hematite
$2,500
 Ouro Preto, Minas Gerais
A fabulous group of mirror-bright, hexagonal plates of Hematite forming stacked clusters to over 2 cm thick,
Sphalerite with Quartz and Chalcopyrite
$400
 Casapalca Mine, Peru
A great deal of crystallographic interest is packed into this quite charming miniature Sphalerite with Quartz
Columbite
$1,600
 Minas Gerais, Brazil
Columbite, an iron-niobium oxide, in this rather gorgeous miniature forms a blocky prism with myriads of
Tantalite-(Mn)
$850
 Nazareno, Brazil
An excellent orthorhombic crystal of Tantalite-(Mn) from the São João del Rei pegmatite province of Nazareno
Hematite
$1,200
 Casa de Pedra Mine, Brazil
This beautifully crystallised miniature Hematite is from the Casa de Pedra mine in Congonhas do Campo, Minas
Rhodochrosite on Manganite
$1,250
 N'Chwaning Mines, South Africa
This small miniature is a fine example of the blockier crystallised habit of Rhodochrosite from the N'Chwaning
Cuprite on Native Copper
$1,250
 St. Day, England
This reasonably large cabinet specimen (12.3 cm long) is from one of the many famous mines in the St. Day
Quartz on Hematite
$750
 Beckermet Mine, England
A 2 cm long double terminated Quartz crystal sits at a slight angle to a small plate of massive Hematite which
Siderite on Quartz
$250
 East Pool Mine, Cornwall
Deep butterscotch toffee coloured drusy Siderite almost entirely coats a group of milky Quartz crystals of up