Silicates

390 results

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Thaumasite

$750

N'Chwaning II Mine, South Africa

A superb, gemmy colourless prismatic Thaumasite, from N'Chwaning Mines, South Africa

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Diopside

$1,600

Merelani Hills, Tanzania

A neat specimen of gemmy green Diopside from manyara Region, Tanzania

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Beryl var. Aquamarine

$500

Davib Ost Farm 61, Erongo Region

A transparent, pale sky-blue crystal of Aquamarine, the blue variety of Beryl. A terrific Aquamarine from

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Beryl var. Aquamarine with Fluorite

$850

Davib Ost Farm 61, Erongo Region

A very aesthesic specimen with several gemmy, transparent vitreous, Aquamarine crystals with Fluorite. The

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Topaz

$200

Stiepelmann Mine, Namibia

well formed classic crystal of Topaz from the Spitzkopje Area in Namibia. The gemmy slightly smokey crystal of

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Forsterite var. Peridot

$5,000

St. Johns Island, Egypt

A very well formed translucent-gemmy single crystal of Forsterite var Peridot with pleasing

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Rhodonite with Galena

$800

North Mine, Australia

A magnificent example of the classic combination of Rhodonite crystals embedded and protruding from a bight

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Fluorite with Chalcopyrite, Scheelite and "Zinnwaldite" on Quartz

$850

Horni Slavkov (Schlaggenwald), Czech Republic

A real eye-catcher of a specimen from Horní Slavkov in the Karlovy Vary Region of the Czech Republic. A

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Rhodonite with Galena

$1,750

North Mine, Australia

The top surface of a small block of massive Galena is almost entirely packed full of translucent cherry-red

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Rhodonite in Galena

$1,000

North Mine, Australia

A beautiful specimen of translucent, cherry-red Rhodonite crystals richly scattered through a matrix of

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Rhodonite with Galena

$2,100

Broken Hill Mine, Australia

Rhodonite in Galena is one of the iconic mineral combinations from the mines at Broken Hill in New South

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Titanite

$350

Thörlbirg, Salzburg

A modified lozenge-shaped Titanite crystal measuring 2.5 x 1.3 x 0.5 cm with a little attached matrix is

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Orthoclase var. Adularia

$750

Tujetsch, Switzerland

An impressive sheave of solid crystallised Adularia, a low-temperature variety of Orthoclase Feldspar, from

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Wulfenite with Hemimorphite

$500

Bad Bleiberg, Carinthia

An almost entirely hidden rib of pinkish-Quartz matrix is enveloped with tangerine-orange tabular Wulfenite

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Epidote with Amphibole var. Byssolite

$200

Knappenwand, Austria

Deep limey-bottle-green Epidote crystals form an intergrown cluster measuring 3.3 x 1.9 x 1.4 cm, the top

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Epidote

$750

Knappenwand, Austria

An elegant and aesthetic divergent group of deep limey-bottle-green Epidote crystals from Knappenwand in the

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Titanite

$700

Untersulzbach Valley, Austria

A terrific cabinet specimen composed of lustrous glassy lime-green Titanite crystals scattered over a strongly

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Axinite with Quartz and Epidote

$4,000

Bourg d'Oisans, France

A stunning Alpine-type specimen of deep clove-brown Axinite crystals, intermingled and overlaying glassy

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Titanite

$300

Hohe Tauern, Salzburg

Leaf-green to burnt umber, glassy crystals of Titanite pervade an interesting and aesthetic matrix of

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Apophyllite

$150

St Andreaskreuz Mine, Lower Saxony

An old-time specimen of colourless and glassy Fluorapophyllite-(K) from St. Andreaskreuz mine, a little east

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Adularia with Chlorite

$350

Felber valley, Salzburg

A quite delightful, perfect Adularia crystal with smaller attached crystals to the sides and completely

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Chrysocolla

$400

Lizard area, Cornwall

Areas rich in the hydrated copper phyllosilicate, Chrysocolla, part-cover the surface of a brecciated coarse

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Cassiterite with Topaz and Hübnerite

$500

Horni Slavkov (Schlaggenwald), Czech Republic

A beautiful small miniature of Cassiterite with Topaz and Hübnerite from Horní Slavkov in the Karlovy Vary

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Malachite with Chrysocolla

$750

Wheal Phoenix, England

Mammillary druses of Malachite form gently curved mounds over the Quartz crystal covered surface of a Quartz

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Orthoclase

$400

Schneckenstein Cliff, Germany

Unusual for this locality, a Carlsbad interpenetrant Orthoclase twin from the classic Schneckenstein Cliff at

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Epidote

$700

Kimmeria, East Macedonia and Thrace

An elegant cluster of well developed, deep leafy-green Epidote crystals from Kimmeria in Xanthi Prefecture,

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Quartz var. Amethyst on Danburite

$200

Charcas, San Luis Potosí

About six small and stubby, double terminated crystals of pale lavender Amethyst, the purple variety of

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Neptunite

$250

Benitoite Gem Mine, California

A perfectly terminated jet-black Neptunite crystal measuring 1.8 x 0.5 x 0.5 cm, partly embedded in a small

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Axinite-(Fe)

$500

Puiva (Pouyva) Mount, Russia

A beautiful undamaged floater of a double terminated Axinite-(Fe) crystal which grades from transparent

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Titanite

$1,750

Höllgraben, Salzburg

Citrus limey-apple-green crystals of Titanite are scattered across the surface of a complex, fine-granular

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Titanite with Adularia and Chlorite

$1,750

Gösleswand, Tyrol

A beautiful, ex-matrix, small miniature composed of a 2.8 cm long double terminated Titanite crystal emerging

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Forsterite

$1,500

Monte Somma, Campania

A remarkably interesting specimen of creamy-tan Forsterite from its type locality of Monte Somma, the present

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Uvarovite (Garnet)

$350

Biserskoye Chrome Deposit, Urals Region

A truly historic specimen of Uvarovite garnet from the Biserskoye Chrome Deposit in the Urals Region of

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Spessartine with Scheelite and Muscovite

$1,400

San Piero in Campo, Tuscany

A splendid specimen composed of pale\ apricot-orange Spessartine garnet crystals overgrowing a rich bed

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Cronstedtite

$1,000

Wheal Jane, England

Cronstedtite, a complex iron silicate, is one of the classic minerals forever associated with Wheal Jane at

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Beryl var. Heliodor

$650

Stiepelmann Mine, Namibia

A well formed and terminated Beryl crystal, variety Heliodor, from the Klein Spitzkoppe (Spitzkopje) granite

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Topaz

$500

Klein Spitzkopje Granite Stock, Namibia

An almost completely gemmy, water-clear Topaz crystal from the Klein Spitzkopje granite stock in the Erongo

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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

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Topaz

$450

Klein Spitzkopje Granite Stock, Namibia

A superb, almost completely water-clear gemmy colourless crystal, beautifully terminated and with a perfect

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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

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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

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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

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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

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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

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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

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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

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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

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Opal in matrix

$1,500

Queensland, Australia

Opal is probably the mineral synonymous with Australia. This splendid example is set in a limestone