Silicates

504 results

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Potassium Feldspar

$250

Zillertal, Austria

This really is an unusual and beautiful specimen of Adularia from the Zillertal Valley in the Tyrol, Austria.

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Epidote with Adularia and Amphibole var. Byssolite

$200

Knappenwand, Austria

A delicate thumbnail of interwoven, deep-lime to bottle-green Epidote crystals with tiny clusters of pure

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Chalcedony on Quartz

$800

Wheal Drea, England

Wheal Drea, part of the Wheal Owls group, lies close to the high cliff tops of the Atlantic coast in south

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Dioptase on Calcite

$1,200

Tsumeb Mine, Namibia

As a connoisseur of Tsumeb material I can genuinely say this is a really terrific combination of Dioptase with

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Chrysocolla ps. after Malachite ps. after Azurite

$1,800

Tenke-Fungurume area, DR Congo

An excellent discovery of Chrysocolla replacing Malachite after Azurite and coated in Quartz, was made in 2019

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Chrysocolla ps. after Malachite ps. after Azurite

$1,200

Tenke-Fungurume area, DR Congo

An outstanding cabinet-size, double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after

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Chrysocolla ps. after Malachite ps. after Azurite

$4,000

Tenke-Fungurume area, DR Congo

A stunning and showy cabinet-size, double pseudomorph of intense sky-blue Chrysocolla replacing Malachite

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Chrysocolla ps. after Malachite ps. after Azurite

$2,500

Tenke-Fungurume area, DR Congo

An unusual double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated in

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Elbaite Tourmaline with Lepidolite

$750

Coronel Murta, Minas Gerais

This delightful 3.4 cm tall cluster of parallel Elbaite Tourmaline crystals is from a new gem pocket found in

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Elbaite Tourmaline with Albite

$400

Coronel Murta, Minas Gerais

A different looking Elbaite Tourmaline from a new gem pocket in the Coronel Murta district of Minas Gerais,

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Elbaite Tourmaline with Quartz and Lepidolite

$400

Coronel Murta, Minas Gerais

This 2.2 cm tall Elbaite Tourmaline crystal is from a new gem pocket found in the Coronel Murta district of

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Chrysocolla ps. after Malachite ps. after Azurite

$400

Tenke-Fungurume area, DR Congo

Bladed and stalagmitic habits of Chrysocolla pseudomorphing after Malachite, itself pseudomorphing after

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Chrysocolla ps. after Malachite ps. after Azurite

$600

Tenke-Fungurume area, DR Congo

From the Tenke-Fungurume area of the Kolwezi mining district in the Democratic Republic of the Congo, this

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Chrysocolla ps. after Malachite ps. after Azurite

$350

Tenke-Fungurume area, DR Congo

This beautiful and interesting Chrysocolla is a pseudomorph after Malachite which is itself a pseudomorph

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Albite var. Pericline

$250

Pfitsch Pass, Austria

Pericline is a variety of Albite feldspar which occurs as elongated milky-white crystals, extended on their

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Smoky Quartz on Feldspar with Schorl and Muscovite

$2,500

Minas Gerais, Brazil

This beautiful and elegant combination of Smoky Quartz, Feldspar, Schorl and Muscovite, all set on a

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Axinite-(Fe) with Quartz

$2,000

Obira mine, Japan

The Obira mine is situated on the southern Japanese island of Kyushu in Oita Prefecture and worked Cu-Zn-As-Sn

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Ilvaite with Pyrite

$1,500

Rio Marina, Italy

Ilvaite is an iron-calcium sorosilicate whose type locality is at the very north-eastern tip of the Italian

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Epidote with Quartz

$2,500

Green Monster Mountain, USA

In the process of cataloguing the mineral collection of Dr Josef Clemente (1899-1987), there is no doubting he

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Hemimorphite

$1,400

Sa Duchessa Mine, Italy

I have to admit of all the worldwide localities for fine blue Hemimorphite, the Sa Duchessa mine at Oridda on

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Epidote with Quartz

$2,000

Green Monster Mountain, USA

If on first sight you don’t exclaim Wow! to this monster Epidote, then you have become immune to the charms of

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Dioptase with Wulfenite

$2,500

Tsumeb Mine, Namibia

Although the lead molybdate Wulfenite is common throughout the Tsumeb orebody, its occurrence with Dioptase in

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Epidote with Quartz

$3,200

Green Monster Mountain, USA

It is apparent that Dr Josef Clemente had a great fondness for the magnificently crystallised Epidote from the

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Epidote

$5,000

Green Monster Mountain, USA

This exquisite miniature Epidote from Green Monster Mountain on Prince of Wales Island in Alaska, USA, is of

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Epidote

$1,500

Green Monster Mountain, USA

The Green Monster Mountain locality on Prince of Wales Island in Alaska, USA, has over twenty recorded mineral

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Eulytine

$2,500

Schneeberg, Saxony

The rare bismuth silicate Eulytine forms orange-brown, often sub-botryoidal crystals with a glossy resinous

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Diopside

$1,250

Slyudyanka (Sludyanka), Eastern-Siberian Region

The mineralisation at Slyudyanka, in the Lake Baikal Area of Eastern-Siberia, Russia, is quite remarkable in

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Goethite on Quartz with Microcline

$300

Lake George Area, USA

This is one of those one-off, unusual quirky specimens which makes you smile simply because it is that bit

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Epidote with Quartz

$2,500

Green Monster Mountain, USA

Think Green Monster Mountain, think Epidote! This classic locality on Prince of Wales Island in Alaska,

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Fluorapophyllite-(K)

$3,000

St. Andreasberg, Germany

Well formed crystals of Fluorapophyllite were scarce even when mining was at its peak in the silver mining

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Pyrosmalite-(Fe)

$500

Haborshytte ore field, Sweden

Pyrosmalite-(Fe) is an extremely rare complex iron silicate which forms buff to golden-honey hexagonal

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Microcline var. Hyalophane

$400

Zagradski Potok Mine, Federation of Bosnia and Herzegovina

Hyalophane is the glassy transparent variety of Microcline Feldspar and this beautiful example is from the

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Magnetite with Fluorapatite and Tremolite

$800

Malmberget, Sweden

A delightful combination of well crystallised black lustrous Magnetite and buff to gooseberry-green

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Arsenopyrite with Quartz, Siderite and Muscovite

$750

Yaogangxian Mine, China

Wow! This super-cute Arsenopyrite with Quartz certainly jumps out at me as a real eye-catcher, a

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Cassiterite with Quartz and Zinnwaldite

$700

Cínovec/Zinnwald, Saxony & Ústí Region (Bohemia)

For me, Cassiterite crystals always add a pang of excitement to a specimen, but perhaps I need to get out more

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Cavansite

$100

Wagholi Quarries, Maharashtra

A beautiful and cute rosette of the rare calcium-vanadium silicate Cavansite measuring 1.5 x 1.0 x 0.5 cm,

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Apophyllite

$450

Samson Mine, Germany

The Samson mine, 0.5 km north-west of St. Andreasberg, in Lower Saxony, Germany, was a famous silver mine

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$6,500

Tenke-Fungurume area, DR Congo

Pseudomorphs of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated in Quartz form an

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$5,000

Tenke-Fungurume area, DR Congo

An arresting large miniature double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,000

Tenke-Fungurume area, DR Congo

A spear-shaped double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,750

Tenke-Fungurume area, DR Congo

This fine sculptural pseudomorph of vivid sky-blue Chrysocolla replacing Malachite after Azurite and coated in

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,500

Tenke-Fungurume area, DR Congo

A small cabinet specimen of vivid sky-blue Chrysocolla overlaying dark emerald-green Quartz-encrusted

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,300

Tenke-Fungurume area, DR Congo

A fabulous pair of broad, V-shaped crystals composed from double pseudomorphs of intense sky-blue Chrysocolla

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,200

Tenke-Fungurume area, DR Congo

Two prominent and one smaller crystal form an unusual double pseudomorph of intense sky-blue Chrysocolla

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$7,500

Tenke-Fungurume area, DR Congo

This museum-grade double pseudomorph of vivid sky-blue Chrysocolla replacing Malachite after Azurite and

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$2,000

Tenke-Fungurume area, DR Congo

A delicate open cluster of double pseudomorphs of creamy duck egg blue Chrysocolla replacing Malachite after

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,750

Tenke-Fungurume area, DR Congo

This striking double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated

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Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,750

Tenke-Fungurume area, DR Congo

A double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated in