Silicates

 

562 results

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
Alamosite
$200
 Tsumeb Mine, Namibia
Alamosite is a rare lead inosilicate which forms sprays and platy colourless to white crystals at Tsumeb.
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
Goethite on Quartz with Microcline
$300
 Lake George Area, USA
This is one of those one-off, quirky specimens which makes you smile simply because it is that bit different
Beryl var. Aquamarine
$350
 Teófilo Otoni, Minas Gerais
A single gemmy to translucent Aquamarine Beryl crystal displaying well-defined growth zones and measuring 5.9
Chrysocolla ps. after Malachite ps. after Azurite with Quartz
$2,500
 Tenke-Fungurume area, DR Congo
A super-unusual small cabinet specimen of vivid sky-blue Chrysocolla preferentially coated with orange-tan
Topaz
$400
 Kleine Spitzkoppe, Erongo Region
Topaz crystals from Kleine Spitzkoppe are characteristically well terminated and quite chunky and exude great
Diopside with Graphite
$700
 Merelani Hills, Tanzania
Crystallised Diopside shifts to a much higher gear in the Merelani Hills mining district of north-eastern
Aegirine with Orthoclase
$950
 Mount Malosa, Malawi
A spectacular group of intergrown, lustrous coal-black Aegirine crystals, richly coated in snow-white crystals
Epidote with Actinolite var. Byssolite
$2,000
 Knappenwand, Austria
A small cabinet Epidote with Actinolite from the Knappenwand in the Untersulzbach Valley, a locality
Willemite
$500
 Tsumeb Mine, Namibia
An excellent small cabinet specimen of blue and green Willemite from Tsumeb mine in Namibia. Stood vertically
Epidote
$250
 Knappenwand, Austria
A single, ex. matrix Epidote crystal from the famous occurrence at Knappenwand close to Salzburg in Austria.
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
Beryl var. Aquamarine with Muscovite
$7,500
 Pingwu, Sichuan Province
A stunning large cabinet specimen of smoky sky-blue Aquamarine Beryl crystals embedded in a matrix of
Vesuvianite
$7,500
 Jeffrey Mine, Québec
An approximately 13 x 8 cm plate of vibrant lime green Vesuvianite crystals from the Jeffrey mine at Asbestos
Cavansite
$100
 Wagholi Quarries, Maharashtra
A beautiful rosette of the rare calcium-vanadium silicate Cavansite measuring 1.5 x 1.0 x 0.5 cm, perched on a
Topaz
$200
 Stiepelmann Mine, Namibia
An excellent, well-formed Topaz crystal from the Spitzkopje area of the Erongo Region in Namibia. This gemmy,
Hemimorphite
$6,500
 Esmeralda Mine, Durango
A superb large cabinet specimen of surface-translucent, bright duck-egg to sky blue botryoidal, bubbly
Diopside var. Chromian Diopside
$400
 Merelani Hills, Tanzania
An attractive thumbnail specimen of gemmy bright lime green Diopside displaying two crystals from the Merelani
Dioptase
$1,200
Dioptase on Calcite is probably the most iconic of species combinations from the legendary Tsumeb mine in
Willemite
$900
 Tsumeb Mine, Namibia
Willemite, a zinc silicate, is known to occur throughout the Tsumeb orebody. This small miniature is formed
Dioptase on Calcite with Wulfenite
$600
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A charming small miniature of lustrous gemmy to translucent emerald green Dioptase crystals measuring to 8 mm
Dioptase on Calcite
$7,500
 Tsumeb Mine, Namibia
There are several mineral associations with the copper silicate Dioptase at Tsumeb, but this of snowy white
Chrysocolla ps. after Malachite ps. after Azurite with Quartz
$2,800
 Tenke-Fungurume area, DR Congo
The Democratic Republic of the Congo (DRC) is the largest country in sub-Saharan Africa and the Kolwezi mining
Beryl var. Aquamarine
$850
 Barra De Salinas, Brazil
This aesthetic and unusually coloured Aquamarine variety of Beryl is from the granite pegmatites located west
Beryl var. Heliodor
$4,000
 Volodarsk-Volynskii Pegmatite District, Ukraine
A fine gemmy and delicately tinted lime to apple green crystal of Heliodor, a gem variety of Beryl, from the
Quartz on Chrysocolla
$850
 Globe, Arizona
Hemispheres measuring to 5 mm diameter and botryoidal aggregates of sky blue Chrysocolla are covered by a thin
Titanite with Orthoclase var. Adularia
$950
 Tormiq Valley, Pakistan
Beautiful well-formed and twinned bladed crystals of lustrous light lime to avocado green Titanite measuring
Cassiterite with Quartz and Zinnwaldite
$250
 St. Michael's Mount, England
Cassiterite from St. Michael's Mount at Marazion near Penzance is almost always distinctive as from this
Paracelsian
$3,500
 Benallt Mine, Wales
A most special small cabinet specimen of crystallised Paracelsian from Benallt mine on the Lleyn Peninsula of
Chrysocolla with Malachite
$150
 Lizard area, Cornwall
We only have Cornwall as the locality for this miniature Chrysocolla with Malachite but are fairly certain it