Silicates

 

365 results

Cronstedtite
$1,000
 Wheal Jane, England
Cronstedtite, a complex iron silicate, is one of the classic minerals forever associated with Wheal Jane at
Beryl var. Heliodor
$650
 Stiepelmann Mine, Namibia
A well formed and terminated Beryl crystal, variety Heliodor, from the Klein Spitzkoppe (Spitzkopje) granite
Topaz
$500
 Klein Spitzkopje Granite Stock, Namibia
An almost completely gemmy, water-clear Topaz crystal from the Klein Spitzkopje granite stock in the Erongo
Inesite
$750
 N'Chwaning II Mine, South Africa
A small miniature group of burnt rusty-orange Inesite crystals from the N'Chwaning II mine, at Kuruman in the
Topaz
$450
 Klein Spitzkopje Granite Stock, Namibia
A superb, almost completely water-clear gemmy colourless crystal, beautifully terminated and with a perfect
Epidote
$450
 Arandis, Namibia
Excellent deep bottle-green crystals of Epidote to 3 cm tall stand on a small plate of Quartz matrix from the
Andradite var. Demantoid (Garnet Group)
$900
 Antetezambato Demantoid-Topazolite Mine, Antsiranana Province
A splendid group of spring leaf-green Andradite garnet crystals, variety Demantoid, in a matrix of
Smithsonite
$600
 Lavrion District Mines, Greece
A most attractive botryoidal mound of pale sky to duck egg-blue Smithsonite with a beautiful smooth and silky
Aurichalcite with Hemimorphite and Baryte
$400
 Western Flats, Derbyshire
A fine example of well crystallised turquoise-green Aurichalcite forming rich druses lining and coating a
Dioptase
$2,600
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A beautiful example of the copper silicate mineral Dioptase from Tsumeb, here occurring as individual and
Dioptase
$850
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Dioptase, the deep emerald-green copper silicate, is a Tsumeb classic and has become, perhaps, the mine’s most
Willemite
$1,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A choice, large miniature of well crystallised Willemite forming rich light aquamarine druses over the deep
Spessartine Garnet in Galena
$7,500
 North Mine, New South Wales
Spessartine Garnet in Galena is one of the most readily recognisable specimens from the world-famous mines at
Opal in matrix
$1,500
 Queensland, Australia
Opal is probably the mineral synonymous with Australia.  This splendid example is set in a limestone
Bustamite
$950
 North Mine, New South Wales
Two translucent clove-burnt-orange Bustamite crystals forming a V-shaped specimen from North Mine at Broken
Bannisterite
$2,500
 Zinc Corporation Mine, Australia
Bannisterite is a black mica-like mineral and a rare phyllosilicate.  A 5.0 x 3.0+ cm area of platy
Apophyllite
$450
 Broken Hill, Australia
Apophyllite occurs at Broken Hill as very fine crystals and this is an excellent example.  Colourless
Plancheite
$750
 M’Seal, Democratic Republic of the Congo
From the classic Mashamba West Mine in the Kolwezi mining district, Democratic Republic of Congo (formerly
Hedenbergite
$500
 Malmberget, Sweden
A group of fine Hedenbergite crystals from Malmberget in Norrbotten County, Sweden, set in an unusual very
Topaz
$450
 Volodarsk-Volynskii, Ukraine
This ex-matrix, complexly developed Topaz crystal is from the classic Volodarsk-Volynskii granitic chamber
Pyroxene
$3,000
 Nordmark Odal Field (Nordmarksberg), Sweden
An stunning specimen of highly lustrous Pyroxene crystals which range from perfectly developed equant crystals
Andradite (Garnet Group)
$300
 Dognecea, Romania
A highly unusual specimen of Andradite garnet in the habit of two thick ribbons which branch from a common
Andradite on Chalcopyrite
$400
 Dognecea, Romania
Lovely caramel brown rhombododecahedral lustrous andradites measuring up to 1 cm on matt black tetragonal
Epidote on Orthoclase
$150
 Epprechtstein, Germany
An impressive 4.6 cm long opaque, creamy crystal of Orthoclase feldspar with small Orthoclase crystals
Nasonite in Datolite and Goethite
$300
 Torr Works Quarry, England
Nasonite is one of the Holy Grails from the rare oxychloride suite occasionally found in Torr Works quarry at
Kaolinite pseudomorphing after Orthoclase
$400
 Melbur China Clay Pit, England
Colloquially referred to as a “Pig’s Egg” by miners, Kaolinite pseudomorphs after Orthoclase feldspar were
Willemite
$750
 Tsumeb Mine, Namibia
An elongated plate of cream to pale creamy-tan Willemite made-up entirely of crystals of between 2 and 5
Dioptase on Calcite with Duftite
$2,000
 Tsumeb Mine, Namibia
An exceedingly choice miniature of rhombohedral Calcite crystals preferentially coated with micro Calcite
Dioptase on Dolomite
$1,500
 Tsumeb Mine, Namibia
A thin Calcite plate (epimorph cast) completely masked by 1 mm and sub-mm slightly bluish-emerald-green
Titanite with Orthoclase variety Adularia
$750
 Tormiq Valley, Pakistan
An interesting and aesthetic cluster of terminated Titanite crystals sat on a small matrix of opaque,
Calcite with Stilbite on Chalcedony
$6,000
 Jalgaon, India
A stunning and remarkable gemmy Calcite twin crystal from the Jalgaon District in Maharashtra, India. 
Beryl var. Aquamarine
$500
 Gilgit District, Pakistan
A single, off-matrix Beryl crystal, variety Aquamarine, from the Gilgit District in Pakistan.  The
Hubeite with Quartz, Pyrite and Calcite
$5,000
 Fengjiashan Mine (Daye copper mine), Hubei Province
Hubeite is a rare Ca-Mn-Fe sorosilicate and was only named in 2001 after Hubei Province in China.  This
Axinite
$6,000
 Obira mine, Japan
Axinite is not a common mineral in Japan, but the Obira mine by Bungo-Ono City in Kyushu Region certainly
Beryl var. Aquamarine
$1,000
 Chumar Bakhoor, Pakistan
A transparent, pale sky-blue crystal of Aquamarine, the blue variety of Beryl.  This ex-matrix specimen
Forsterite
$600
 Sapat Gali, Pakistan
A terminated stubby lime-green Forsterite forming a spear-shaped crystal from Sapat Gali by Naran in the
Almandine (Garnet Group)
$650
 Zlatoust, Chelyabinsk Oblast
A beautiful miniature of Almandine garnet crystals richly covering a plate of massive Clinochlore and
Beryl var. Aquamarine
$1,100
 Shaitanka District, Middle Urals
A translucent, cornflower-blue crystal of Aquamarine, the blue variety of Beryl.  From the Shaitanka
Titanite with Orthoclase variety Adularia
$150
 Tormiq valley, Gilgit-Baltistan
A sharp, well developed oil-green crystal of Titanite measuring 2.1 x 1.1 x 0.4 cm on a crystallised Adularia
Hemimorphite
$200
 Golconda Mine, England
Light fawn micro-crystals of Hemimorphite form drusy mounds to around 1.8 cm over a chalky-white Baryte
Beryl var. Morganite
$1,200
 Brazil, South America
An off-matrix, part tabular crystal of pale coral pink Morganite, the pink variety of Beryl.  Admittedly
Titanite
$3,500
 Capelinha, Brazil
A large well-developed twin Titanite crystal measuring to 6.8 cm with gemmy to opaque green to light brown
Beryl
$350
 Teófilo Otoni, Minas Gerais
A single gemmy to translucent-opaque Aquamarine crystal displaying well-defined growth zones measuring to 5.9
Beryl
$750
 Brazil, South America
A large lustrous double terminated crystal of Beryl variety 'Aquamarine' with pastel green colour measuring
Beryl var. Aquamarine
$8,500
 Shigar Valley, Pakistan
A showstopper specimen of blue Aquamarine with striation on the prismatic faces and a multitude of parallel
Spessartine Garnet on Muscovite
$1,500
 Loliondo, Tanzania
A bright orange group of Spessartine garnets on a Muscovite matrix. There is one major crystal accompanied
Orthoclase
$400
 Baveno, Italy
A pleasing prismatic bicoloured single twinned crystal of Orhoclase measuring to 5.2 cm from Baveno, Piedmont,
Benitoite with Neptunite on Natrolite
$3,500
 Benitoite Gem Mine, California
A well-formed single crystal of Benitoite with a colour that ranges from deep ink blue on the edges to white