Silicates

 

483 results

Willemite
$900
 Franklin Mining District, New Jersey
From the fluorescent capital of the world, this is a rare specimen of well-developed Willemite crystals,
Dioptase with Calcite
$12,500
 Tsumeb Mine, Namibia
Mention Tsumeb and Dioptase soon springs to mind, as it is perhaps the most iconic mineral from this amazing
Elbaite (Tourmaline) with Lepidolite
$2,200
 Barra De Salinas, Brazil
A beautiful composite Elbaite Tourmaline prism from Barra de Salinas in Minas Gerais in Brazil.  Of
Elbaite (Tourmaline) on Quartz with Lepidolite
$4,500
 Barra De Salinas, Brazil
Wow and double wow!  What a fabulous specimen this is!  A broad, skyscraper-like tower of
Elbaite (Tourmaline) with Lepidolite
$1,750
 Coronel Murta, Minas Gerais
Mounted vertically on a clear acrylic base, this elegant pink Elbaite Tourmaline crystal, 5.3 cm tall, is from
Spessartine Garnet
$4,000
 North Mine, Australia
North Mine is one of the most famous mines on the Line of Lode at Broken Hill in Australia, one of the world’s
Rhodonite with Galena and Spessartine Garnet
$2,000
 North Mine, Australia
Another red mineral from North Mine at Broken Hill, New South Wales, Australia, which rather surprisingly
Hedenbergite
$3,500
 North Mine, Australia
Hedenbergite is one of those species rarely encountered in collections from the Broken Hill Mining District in
Spessartine Garnet
$1,500
 North Mine, Australia
Rich cranberry and damson-plum Spessartine Garnets set in a matrix of lead-grey Galena really needs no
Grossular Garnet var. Hessonite
$7,500
 Jeffrey Mine, Québec
An excellent specimen of beautiful gemmy crystals of Grossular Garnets from the prime location at the Jeffrey
Andradite Garnet with Amphibole
$950
 Malenco Valley, Italy
A spectacular and classic specimen of intergrown oil-green Andradite crystals atop a fibrous white Amphibole
Bustamite
$600
 North Mine, New South Wales
Bustamite is a calcium manganese inosilicate and famously occurs as superb rose to candy-pink crystals within
Diopside with Graphite
$700
 Merelani Hills, Tanzania
Crystallised Diopside moves into a much higher gear within the Merelani Hills mining district of north-eastern
Beryl var. Emerald
$7,500
 Panjshir Province, Afghanistan
Well formed and terminated gemmy-translucent crystals of Emerald on a mica-schist from Afghanistan.  Five
Vesuvianite
$4,500
 Jeffrey Mine, Canada
A beautiful archetypal specimen of Vesuvianite from the famous Jeffrey mine at Asbestos in Canada. Very
Beryl var. Emerald
$2,500
 Malyshevo, Russia
A great specimen of Russian Emerald, a variety of Beryl, in crystals measuring to 2.3 cm from Malyshevo in the
Dioptase with Cerussite
$4,500
 Tsumeb Mine, Namibia
Dioptase is always a collector’s favourite and is one of the iconic minerals from the Tsumeb mine in
Grossular Garnet
$750
 Cofre de Perote, Veracruz
Crystals of translucent-gemmy apple-green to almost colourless Grossular Garnet, measuring to 4 mm+, richly
Chrysocolla
$50
 Moon's Hill Quarry, Somerset
A dark grey andesite lava containing small amounts of purple oxidised likely Bornite with extensive surface
Augite (Pyroxene) with Calcite
$1,400
 Arendal, Aust-Agder
This specimen of black Augite with salmon-pink Calcite is from the historic collection of Archduke Stephan of
Dioptase
$1,750
 Tsumeb Mine, Namibia
Although categorised at Tsumeb as “common”, finds of the quality and crystal size displayed in this specimen
Dioptase
$1,250
 Tsumeb Mine, Namibia
Of all Tsumeb’s spectacular minerals, the copper silicate Dioptase is widely considered its signature
Dioptase on Calcite
$650
 Tsumeb Mine, Namibia
Four charming, equant Dioptase crystals averaging 4 to 6 mm diameter form a deep emerald green linked chain
Kaolinite ps. after Orthoclase
$900
 Goonbarrow China Clay Pit, England
The superb Kaolinite pseudomorphs after Orthoclase feldspar found in many of Cornwall’s china clay pits (CCPs)
Epidote with Actinolite
$7,500
 Knappenwand, Austria
Gemmy, bottle to deep sage-green translucent Epidote from the Knappenwandmulde series of epidote-amphibolites
Magnetite with Rutile, Hematite, Adularia and Quartz
$6,000
 Binn Valley, Switzerland
Magnificent, individual sharp octahedral Magnetite crystals are richly scattered across the surface of a
Quartz with Chlorite
$1,500
 Central St. Gotthard Massif, Switzerland
A cluster of superb and impressive ice-clear Quartz crystals rest on a thin yet strong plate of mixed
Magnetite in Asbestos
$2,500
 Totenkopf (Lower Riffl glacier), Salzburg
An amazing and superb, cuboctahedral Magnetite measuring 2.3 cm across sits partly embedded in a matrix of
Hematite with Orthoclase var. Adularia
$250
 St. Gotthard Massif, Ticino (Tessin)
A delightful small thumbnail Iron Rose Hematite from the St. Gotthard Massif in Switzerland, with an attached
Tourmaline with Albite var. Cleavelandite
$1,250
 Elizabeth R. Mine, California
A rare location piece from the Elizabeth R. mine on Chief Mountain at Pala, California.  Judging by its
Beryl var. Aquamarine
$7,500
 Corrego Sao Francisco, Brazil
Mounted vertically on its acrylic base, the wonderful colour, morphology, and surface texture of this
Tourmaline with Lepidolite
$3,500
 Himalaya Mine, California
This most stunning miniature Tourmaline (probably Elbaite) is bicoloured, grading from pale sage-green to
Neptunite with Joaquinite-(Ce)
$3,500
 California State Gem Mine, California
This exposed vein section of snow-white Natrolite is richly covered with scattered, long, elegant black
Neptunite with Joaquinite-(Ce) and Benitoite
$2,000
 California State Gem Mine, California
The combination of Neptunite and Benitoite is a classic from the California State Gem mine on Santa Rita Peak,
Hydroxylherderite on Albite
$600
 Barra De Salinas, Brazil
Excellent, opaque pale flesh pink-creamy crystals of the calcium-beryllium phosphate Hydroxylherderite are
Spodumene var. Kunzite
$400
 Stewart Mine, USA
This splendid off-matrix Spodumene crystal is the variety Kunzite named for George Frederick Kunz, gemmologist
Fluorite on Muscovite
$350
 Davib Ost Farm 61, Erongo Region
A pair of leaf to emerald-green cuboctahedron Fluorite crystals sit on, and contrast against, a thick plate of
Beryl var. Aquamarine
$1,250
 Sumire, Gilgit District
A squat, perfectly developed pale sky-blue Beryl crystal, variety aquamarine, is attractively perched to one
Fluorite with Quartz
$850
 Kara-Oba, Karagandy Province
Perfect octahedral Fluorite crystals to 1.1 cm on edge are almost entirely masked by a sugary coating of
Beryl var. Aquamarine on Albite
$4,500
 Gilgit District, Pakistan
This completely stunning gemmy sky-blue Aquamarine crystal emerges from a rugged snow-white matrix of Albite
Topaz
$2,500
 Volodarsk-Volynskii, Zhytomyr Oblast'
This large ex-matrix, clove-brown Topaz crystal is from the amazing gem pegmatites at Volodarsk-Volynskii in
Lazurite
$4,500
 Sar-e Sang, Badakhshan Province
Without doubt, this fantastic inky azure-blue group of Lazurite crystals is a museum-grade specimen and is
Axinite
$3,500
 Obira mine, Japan
Axinite is an uncommon mineral in Japan and this magnificent large cabinet sized specimen is what I would
Beryl var. Aquamarine
$1,300
 Gilgit District, Pakistan
A magnificent thick prismatic Beryl crystal, variety Aquamarine, from Gilgit, Northern Areas, Pakistan with a
Topaz on Zinnwaldite
$700
 Volodarsk-Volynskii, Zhytomyr Oblast'
A classic specimen of smoky-blue and pink-champaign Topaz nestling amongst Zinnwaldite on a matrix of milky
Calcite on Quartz with Chlorite
$450
 Puiva Mount, Western-Siberia
Despite being composed from three of the most common minerals, the way in which these have crystallised and
Chalcedony
$550
 Trevascus Mine, Cornwall
Chalcedony from Trevascus mine at Carnhell Green, between Camborne and Hayle in Cornwall, is readily
Chalcedony on Quartz
$300
 Cornwall, England
Many specimens of Chalcedony on Quartz from Cornwall date from a period where few details were recorded apart