Silicates

 

432 results

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)
Quartz var. Chalcedony
$700
 Cornwall, England
This rather delightfully structured Chalcedony reminds me of the Devils Tower in Wyoming, made internationally
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
Andradite Garnet with Quartz and Hedenbergite
$300
 Serifos Island, Aegean Islands
A classic combination of Andradite Garnet with Quartz and Hedenbergite from Serifos Island, one of the Aegean
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
Tourmaline with Lepidolite on Quartz
$500
 Pala Chief Mine, USA
The Pala Chief mine in San Diego County is another of California’s famous gem tourmaline mines and despite
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
Hemimorphite on Calcite
$100
 Golconda Mine, England
An interesting large thumbnail of micro-crystals of glassy, fawn Hemimorphite coating a twined Calcite crystal
Greenockite with Prehnite and Pumpellyite
$7,500
 Andesite Quarry, Germany
An outstanding crystal of Greenockite (cadmium sulphide), extremely large and well formed for the species,
Epidote
$1,800
 Knappenwand, Austria
A magnificent clustered group of inky dark bottle-green Epidote crystals from the well-known Epidote locality
Adularia
$850
 Bielig Valley (Selking Valley), Switzerland
An impressive stack of thick, lozenge-shaped Adularia crystals aesthetically dusted in micro-crystals of light
Cassiterite with Tourmaline
$350
 Goonbarrow China Clay Pit, England
Access to the China Clay Pits (CCP) around the town of St. Austell in Cornwall is no longer possible, so
Eulytine
$1,750
 Sauschwart Mine, Saxony
Eulytine is a rare bismuth silicate which, in this specimen, forms 1 to 2 mm, highly lustrous gemmy crystals
Beryl var. Heliodor
$2,500
 Murzinka Mine, Urals Region
A rather gorgeous tabular-like Beryl crystal of the variety Heliodor from the historic and famous Murzinka
Topaz on Orthoclase
$8,500
 Murzinka Mine, Urals Region
A rare and stunning specimen of pale blue Topaz crystals on a terminated Orthoclase crystal from the Murzinka
Calcite with Ilvaite
$900
 Dal'negorsk, Russia
An impressive colourless and mainly transparent Calcite crystal, double terminated with an overall length of 6
Andradite Garnet
$450
 Korshunovskoye iron deposit, Irkutsk Oblast
A simply stunning and magnificent example of Andradite Garnet, forming interpenetrant rhombic dodecahedrons to