Silicates

 

577 results

Tremolite
$400
 West Pierrepont, New York
A large cluster of intergrown prismatic crystals of Tremolite with scattered sub-centimetre masses of grey to
Quartz var. Amethyst on Danburite
$275
 Charcas, San Luis Potosí
Eight double terminated Amethyst Quartz crystals of delicate violet are strung out over a colourless Danburite
Quartz var. Amethyst on Danburite
$250
 Charcas, San Luis Potosí
Several double terminated Amethyst Quartz crystals of delicate violet are clustered over and to one side of a
Fluor-buergerite
$750
 Mexquitic, San Luis Potosí
Mexquitic de Carmona Municipality in San Luis Potosí, Mexico, is the type locality for Fluor-buergerite, a
Topaz
$400
 Tepetate, Mexico
A 1.5 x 0.9 x 0.5 cm perfectly terminated Topaz crystal protruding vertically from a small block of volcanic
Hemimorphite
$500
 Ojuela Mine, Mexico
Glassy, highly lustrous, milky white tabular Hemimorphite crystals and crystal clusters make-up almost all of
Danburite
$3,000
 Aurora Mine, Mexico
A truly superb cabinet specimen of large terminated Danburite crystals measuring to an exceptional 10
Inesite with Apophyllite
$1,500
 Broken Hill, Australia
Inesite is a relatively rare calcium-manganese-iron silicate hydroxide which occurs in several of the mines at
Topaz
$6,000
 Dassu, Gilgit-Baltistan
This magnificent and genuinely show-stopping gemmy Topaz is from Dassu in the Braldu Valley of Gilgit,
Scheelite with Muscovite
$2,000
 Mount Xuebaoding, Sichuan Province
This gorgeous butterscotch orange octahedral Scheelite crystal set amongst blades of Muscovite Mica is from
Spessartine on Smoky Quartz on Feldspar
$9,000
 Wushan Spessartine Mine, China
Looking at this group of magnificent black Smoky Quartz crystals heavily dusted with bright tangerine orange
Topaz on Smoky Quartz
$900
 Adun-Cholon Range, Russia
A very different looking small cabinet specimen of largely colourless Topaz with rich deep smoky to golden
Scapolite
$1,500
 Badakhshan Province, Afghanistan
A perfectly terminated, pale lilac crystal of Scapolite displays to full advantage against a snow-white matrix
Afghanite with Phlogopite
$500
 Sar-e Sang (Sar Sang; Sary Sang), Badakhshan Province
A deep blue Afghanite crystal extends up above a mixed Phlogopite mica and Calcite matrix from Sar-e Sang in
Beryl var. Aquamarine
$3,500
 Barra De Salinas, Brazil
An ex-matrix, single crystal of milky, sky blue Beryl forming a long hexagonal prism from Barra de Salinas in
Beryl var. Aquamarine
$2,500
 Barra De Salinas, Brazil
An ex-matrix, single crystal of milky, sky blue Beryl forming a long hexagonal prism from Barra de Salinas in
Spessartine Garnet
$5,000
 Navegadora Mine, Brazil
A stunning naturally etched light Burgundy red Spessartine Garnet on Quartz from the Navegadora Claim at
Phenakite
$1,500
 Rio Piracicaba, Brazil
Phenakite is a beryllium nesosilicate sometimes associated with pegmatites and this fine small miniature is
Dioptase
$250
 Tsumeb Mine, Namibia
Gemmy to translucent deep emerald green Dioptase crystals to 4 mm richly coat a thin yet undulating matrix of
Dioptase with Calcite
$850
 Tsumeb Mine, Namibia
Three good size crystals of emerald green Dioptase are perched along a matrix of snowy white rhombohedral
Grossular Garnet
$2,000
 Arrondissement Diakon, Mali
This small cabinet specimen of two intergrown Grossular garnet crystals is an absolute delight; a specimen
Schorl on Feldspar
$1,300
 Davib Ost Farm 61, Namibia
The Davib Ost Farm 61 at Karibib in the Erongo Region of Namibia has become famous for its numerous finely
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
Azurite with Libethenite and Chrysocolla
$450
 Carharrack, Cornwall
This miniature of jumbled Azurite, Libethenite and Chrysocolla is a fine example of typical vein material from
Cassiterite with Quartz and Mica
$350
 Ehrenfriedersdorf, Germany
Lustrous black Cassiterite crystals of typically 1 cm wide form a 3 x 1.5 cm cluster and a few individual
Apophyllite with Inesite
$4,500
 New Broken Hill Consolidated Mine, New South Wales
Inesite is a hydrous calcium manganese silicate which at the Broken Hill mines in New south Wales, Australia,
Chrysocolla ps. After Malachite ps. After Azurite with Quartz
$900
 Tenke-Fungurume area, DR Congo
A completely naturally flat plate of dark green Malachite is overgrown with pastel sky-blue Chrysocolla
Smoky Quartz with Cassiterite on Zinnwaldite
$500
 Cínovec/Zinnwald, Saxony & Ústí Region (Bohemia)
From the Cínovec-Zinnwald ore field which extends into both Germany and the Czech Republic, this Smoky Quartz
Neptunite  with Joaquinite-(Ce)
$1,500
 California State Gem Mine (Dallas Gem Min), California
An excellent small cabinet display specimen of terminated, prismatic Neptunite crystals measuring to 2.6 cm
Tourmaline with Lepidolite and Cleavelandite
$1,500
 Himalaya Mine, California
An integrated pair of quite complex Tourmaline prisms, most probably Elbaite, from the Himalaya mine at Mesa
Chondrodite
$900
 Tilly Foster Mine, USA
The Tilly Foster Iron mine at Brewster in Putnam County, New York, USA, worked a large iron ore deposit and
Elbaite (Tourmaline) with Lepidolite
$1,250
 Pala Mining District, California
A single prism of bi-coloured Elbaite Tourmaline with a little attached Lepidolite mica from the Pala Mining
Epidote
$1,250
 Green Monster Mountain, USA
A spectacular thick blocky tabular crystal of very dark green Epidote from the famed Green Monster Mountain on
Neptunite with Joaquinite-(Ce)
$1,500
 California State Gem Mine (Dallas Gem Min), California
Excellent lustrous black prismatic crystals of Neptunite measuring to 1.8 cm long pleasingly contrast against
Diopside
$1,500
 De Kalb Township, New York
A now rare old location for crystal specimens of Diopside from De Kalb in St. Lawrence County, New York, USA.
Almandine Garnet
$5,000
 Russell Garnet Mine, Massachusetts
Essentially five intergrown large dodecahedral Almandine Garnet crystals from the old historic Russell Garnet
Apophyllite with Prehnite
$500
 Centreville, Virginia
To the uninitiated eye this fine colourless to milky white Apophyllite covering peppermint green Prehnite
Smoky Quartz with Microcline var. Amazonite
$500
 Pikes Peak, Colorado
Blue-green Amazonite Feldspar with Smoky Quartz requires no introduction form its most famous of all
Spodumene var. Kunzite
$400
 Stewart Mine, USA
This splendid off-matrix Spodumene crystal is the variety Kunzite named for George Frederick Kunz, gemmologist
Quartz
$450
 Hot Springs, Arkansas
A beautiful small cabinet specimen of transparent Quartz crystals of the variety Rock Crystal from the
Hemimorphite
$500
 Banner District, Arizona
Botryoidal, powder blue Hemimorphite coats both sides of a flattened sandy coloured matrix from the Banner
Dioptase
$6,500
 Tsumeb Mine, Namibia
Of the 335 recorded mineral species from the Tsumeb mine in Namibia there is just one which has become
Dioptase on Calcite with Duftite
$2,000
 Tsumeb Mine, Namibia
A charming and choice miniature of rhombohedral Calcite crystals preferentially coated with micro Calcite
Willemite pseudomorph after Azurite
$2,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An incredibly rare specimen of turquoise-sky-blue Willemite pseudomorphing after a group of vertically
Ferberite with Quartz, Galena, Pyrite and Epidote
$5,000
 Kara-Oba, Karagandy Province
This description can only begin with Wow! And that’s a massive Wow! From one side, what appears to be one
Apophyllite with Calcite and Stilbite
$400
 Pune, India
A classic Pune double terminated Apophyllite (probably Fluorapophyllite) crystal, 7.5 cm long, sits across and
Hyalophane
$1,000
 Zagradski Potok Mine, Federation of Bosnia and Herzegovina
Characteristic twinned crystal of gemmy colourless to translucent white Hyalophane crystal from the Zagradski
Brookite with Albite
$300
 Twll Maen Grisial, UK
Simply the mention of Prenteg conjures thoughts of the three titanium dioxide polymorphs and this terrific