Silicates

 

610 results

Andradite Garnet with Hedenbergite and Quartz
$1,250
 Mega Horio, Aegean Islands Department
A fine example from the classic Andradite Garnet locality at Mega Horio on Serifos Island, Greece. Excellent,
Melilite
$1,750
 San Rocco, Lazio
Labelled Melilite, this superbly crystallised specimen is from San Rocco in the Viterbo Province of Lazio,
Quartz with Chlorite
$750
 Hingston Down Quarry, Cornwall
Hingston Down is a large quarry still in operation to the west of Gunnislake, roughly midway between
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)
Cassiterite var. Wood Tin with Quartz and Dolomite
$500
 Cornwall, England
A good example of the variety of Cassiterite known as Wood Tin, due to its concentric banded appearance. This
Cronstedtite
$1,500
 Wheal Jane, England
A well-formed radial cluster of lustrous black acicular Cronstedtite crystals measuring to 8 mm are nestled in
Chrysocolla with Native Copper
$500
 Goonhilly Downs, Cornwall
A specimen with a lot of history! Admittedly, rather an ugly brute comprising Native Copper pervading and
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
Andradite Garnet
$750
 Ocna De Fier, Romania
A handsome small cabinet specimen of limey yellow-green and mid to dark chocolate brown Andradite crystals
Axinite-(Fe)
$250
 Meldon Aplite Quarry, England
An intergrown cluster of mottled light and dark chocolate brown Axinite-(Fe) bladed crystals from Meldon
K Feldspar
$250
 Zillertal, Austria
This really is an unusual and beautiful specimen of Adularia from the Zillertal Valley in the Tyrol, Austria.
Nasonite in Datolite and Goethite
$300
 Torr Works Quarry, England
Nasonite is one of the Holy Grails from the rare oxychloride suite occasionally found in Torr Works quarry at
Aurichalcite with Hemimorphite and Baryte
$150
 Western Flats, Derbyshire
During the early 1980’s, collectors local to Derbyshire undertook a lot of exploratory work in the Golconda
Hemimorphite
$200
 Golconda Mine, England
Light fawn micro-crystals of Hemimorphite form drusy mounds to around 1.8 cm over a chalky-white Baryte
Hemimorphite
$250
 Roughton Gill Area, England
Light powder blue to colourless botryoidal druses and well-formed Hemimorphite crystals richly cover the
Quartz with Chlorite inclusions
$400
 Cornwall, England
This fine and aesthetic group of Quartz crystals is from Cornwall, but exactly where from has gone
Chrysocolla
$400
 Lizard area, Cornwall
Areas rich in the hydrated copper phyllosilicate, Chrysocolla, partly cover the surface of a brecciated,
Aragonite on Quartz
$850
 Botallack Mine, UK
An old-time specimen, collected prior to 1870, of micro-crystals of Aragonite forming globular clusters over
Anatase with Albite and Quartz
$1,000
 Twll Maen Grisial, UK
A 3 mm clove brown Anatase crystal nestles in a small cleft next to colourless Quartz crystals and several
Paracelsian
$3,500
 Benallt Mine, Wales
The Benallt mine on the Lleyn Peninsula in Gwynedd, Wales, is an amazing locality but one not that well known,
Gadolinite-(Y)
$250
 Høydalen (Høydalen Seter), Norway
A single crystal of Gadolinite-(Y) from one of the two Microcline pegmatite quarries at Høydalen in the
Pyroxene
$3,000
 Nordmark Odal Field (Nordmarksberg), Sweden
A stunning specimen of highly lustrous Pyroxene crystals ranging from perfectly developed equant crystals of
Zircon
$2,500
 Seiland Island, Norway
This really is a museum quality Zircon from the nepheline syenite pegmatites in the southern part of the
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
Helvine
$750
 St. Richard Mine (Friedefürst Mine), Saxony
Helvine, a rare beryllium manganese silicate, forms sharp buttery lemon yellow tetrahedral crystals richly
Eulytine
$400
 Schneeberg District, Germany
Sparkling micro-crystals of the bismuth silicate Eulytine form a pervasive druse along with scattered single
Prehnite
$600
 Rauschermühle Quarry, Rhineland-Palatinate
An excellent specimen of smoky olive to creamy apple green Prehnite with rhombohedral white to pale apricot
Titanite
$700
 Untersulzbach Valley, Austria
A terrific cabinet specimen composed of lustrous glassy lime-green Titanite crystals scattered over a strongly
Potassium Feldspar var. Adularia with Chlorite
$350
 Felber valley, Salzburg
A quite delightful, perfect Adularia crystal with smaller attached crystals to its sides and completely
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
Epidote
$3,500
 Bourg d'Oisans, France
A fine, rich and lustrous large cabinet specimen of prismatic Epidote crystals varying from pistachio to dark
Garnet (Andradite / Grossular)
$450
 Shap Blue Quarry, Cumbria
Specimens of Garnet from the Shap Blue quarry at Shap in Cumbria are a sought after addition to any collection
Andradite with Calcite
$950
 Ocna De Fier, Romania
An excellent miniature of well-formed Andradite Garnet crystals measuring to 1.2 cm, displaying the
Epidote
$700
 Kimmeria, East Macedonia and Thrace
An elegant cluster of well developed, deep leaf-green Epidote crystals from the molybdenite skarn deposit at
Diopside and Magnetite and Clinochlore
$300
 Nordmark Odal Field (Nordmarksberg), Sweden
A saddle-shaped, V-section, greenish metamorphic matrix, similar to a tight recumbent fold, is encrusted on
Topaz
$1,000
 Schneckenstein Cliff, Germany
A charming miniature of a delicate lemon yellow Topaz crystal from the classic German locality of
Hemimorphite on Baryte
$125
 50 fm Flats, England
Golconda mine, west of Wirksworth in Derbyshire, produced both lead and barium in its heyday.  Local
Agrellite
$150
 Kipawa alkaline complex, Canada
This cleaved long block of the rare silicate Agrellite is from its type locality in the Kipawa alkaline
Titanite
$450
 Tujetsch, Switzerland
This impressive small cabinet specimen is richly adorned by many golden yellow Titanite crystals from the
Microcline var. Hyalophane
$3,500
 Busovača, Central Bosnia Canton
Hyalophane is a clear and colourless variety of Microcline Feldspar, deriving its name from the Greek meaning
Pentagonite
$3,500
 Wagholi Quarries, Maharashtra
This amazing Pentagonite is from the Wagholi Quarries in the Pune District of Maharashtra State in
Tausonite with Lamprophyllite and Aegirine
$200
 Murunskii Massif, Russia
I have to be honest and say, if this specimen were entering a Beauty and the Beast contest, it would sit more
Diopside
$750
 Fargon Meeru, Badakhshan
The dense white marble at Fargon Meeru in the Koksha Valley of Afghanistan is host to excellent Diopside,
Wiluite
$1,000
 Vilyui River Basin, Russia
A superb and seldom encountered specimen of the complex silicate Wiluite from one of its two co-type
Topaz on Orthoclase Feldspar
$8,500
 Murzinka Mine, Urals Region
A rare and stunning specimen of pale blue Topaz crystals on a terminated Orthoclase crystal from the Murzinka
Topaz
$5,000
 Murzinka Mine, Urals Region
An off-matrix terminated Topaz crystal of bright cornflower-blue from the Murzinka mine in the Prigorodny
Titanite with Rutile, Actinolite and K Feldspar var. Adularia
$4,500
 Teufelsmühle, Salzburg
The mindat page shows an excellent photo by Günter Grundmann of the Teufelsmühle and to put it mildly, it
Ilvaite
$2,500
 Rio Marina, Italy
Ilvaite is a calcium-iron silicate and this superb crystal is from its type locality at Rio Marina on the Isle