Silicates

 

213 results

Willemite with Calcite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rich miniature, with a core of dark matrix, completely hidden by an enveloping overgrowth of drusy
Willemite pseudomorph after Cerussite
$2,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rare and fascinating specimen of Willemite, forming pseudomorphs after Cerussite and epimorphs and
Willemite with Calcite  and Cerussite
$900
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rich intergrown crystal specimen of Willemite displaying a core of white overgrown by a gemmy clear zone
Topaz
$1,500
 Ouro Preto, Brazil
A substantial prismatic crystal of Topaz from Ouro Preto, Brazil, measuring to 5.4cm mostly of a pink colour
Dioptase
$300
 Mammoth-St. Anthony Mine, USA
A classic small cabinet specimen of richly intergrown prismatic emerald green Dioptase crystals abundantly
Spodumene
$5,000
 Beebe Hole Mine, California
Gemmy tinted yellow Spodumene forms a striated naturally etched crystal passing into the pink gem variety
Vesuvianite
$1,500
 Jeffrey Mine, Québec
A rich lustrous crystal specimen of Vesuvianite from the Jeffrey Mine, Canada. Well-formed gemmy to
Epidote
$1,000
 Concession Morgan 3, Lima Department
A substantial lustrous crystal of olive-green to pistachio-green Epidote measuring to 2.5cm displays above an
Spodumene gem variety Kunzite
$2,400
 Pala, California
A fine gem pink crystal of lustrous Kunzite measuring to 7.5cm displays excellent form, from the Pala
Hemimorphite
$650
 Santa Eulalia, Mexico
A classic specimen of Hemimorphite displaying an excellent array of white opaque to colourless terminated
Epidote
$750
 Green Monster Mountain, USA
A classic miniature specimen of rich deep olive green Epidote from the Green Monster Mountain, Alaska,
Danburite
$3,000
 Aurora Mine, Mexico
A superb crystal specimen of large bladed terminated Danburite measuring to an exceptional 10cm. Crystals of
Prehnite
$600
 Rauschermühle Quarry, Rhineland-Palatinate
An excellent specimen of green Prehnite with rhombohedral Calcite from the Rauschermühle quarry at
Apophyllite
$950
 St Andreasberg, Germany
A 6.5 x 3.5 cm band of gemmy pale candy-pink Apophyllite crystals traverse a block of off-white, rhombohedral
Fluorite with Quartz
$3,250
 Freiberg District, Germany
A superb and aesthetic bed of highly lustrous, semi-transparent Fluorite cubic crystals of a light
Calcite on Quartz
$950
 Cavnic, Romania
Lustrous cauliform clusters of opaque, snow-white Calcite coat glassy Quartz crystals to 2.5 cm over a matrix
Topaz
$600
 Schneckenstein Cliff, Germany
Light lemon yellow prismatic crystals of Topaz to 1.5 cm richly sit on top of a light and dark foliated matrix
Spessartine Garnet
$3,500
 North Mine, New South Wales
A substantial and important specimen for the crystal size of the lustrous Spessartine Garnet
Willemite
$1,250
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Siderite-rich Dolomite forms a rounded platy matrix almost entirely encrusted on all faces with colourless and
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
Tennantite with Quartz
$350
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Sooty-black tetrahedral crystals of the copper-iron sulphosalt Tennantite richly cover a matrix of massive
Dioptase with Calcite and Duftite
$400
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A tremendous small cabinet specimen of equant, deep emerald-green Dioptase crystals to between 2 and 3 mm
Axinite-(Mn)
$2,000
 Canta, Lima Department
A superb lustrous crystal specimen of Axinite-(Mn) from the recent find (2015) in the Canta area in Peru. The
Baddeleyite, Zircon var Caldasite
$500
 Poços Poços de Caldas alkaline complex, Brazilde Caldas alkaline complex
A rare specimen of botryoidal lustrous grey-green Caldasite a mixture of Baddeleyite with Zircon,
Piemontite with Garnet, “Alurgite” and Braunite
$250
 Prabornaz Mine (Praborna Mine), Aosta Valley
A long shard of off-white, cryptocrystalline Quartz is shot through with laths to 6.5 cm of black to deep
Andradite Garnet
$1,250
 Mega Horio, Aegean Islands Department
A dome of Andradite garnet encloses an underlying matrix of dark olive-green Hedenbergite from the world
Andradite Garnet
$1,000
 Mega Horio, Aegean Islands Department
A plate composed entirely of Andradite garnet from the classic locality at Mega Horio on Serifos, Greece. The
Andradite with Hedenbergite and Quartz
$1,250
 Mega Horio, Aegean Islands Department
A fine example of the now classic Andradite location on Serifos Island, Greece. Excellent
Cronstedtite
$700
 Kutná Hora, Bohemia
A rare example for the location of Cronstedtite from Kutná Hora, Czech Republic. A druse of terminated
Uvarovite Garnet
$2,500
 Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region
A number of rich nickel green classic crystals of the uncommon Garnet species Uvarovite measuring to 1.1cm
Uvarovite Garnet
$7,500
 Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region
Two rich nickel green coloured translucent to opaque areas of comparatively well-formed crystals of
Almandine Garnet
$400
 Bondasca Valley, Grischun
A well-developed crystal of Almandine Garnet measuring to 1cm with a rich rootbeer colour and internal
Titanite
$1,200
 Schiedergraben, Salzburg
A well-formed bladed crystal of Titanite measuring to 3cm sits prominently at an
Grossular Garnet with Clinochlore
$3,000
 Ala Valley, Piedmont
Excellent gemmy orange-brown well-formed crystals of Grossular measuring to 6mm are neatly clustered with
Grossular var Hessonite
$300
 Gava Valley, Liguria
Classic rich deep maroon red well-formed crystals of Grossular measuring to 5mm, with grey-green
Scapolite
$1,500
 Badakhshan Province, Afghanistan
A perfectly terminated, pale lilac crystal of Scapolite displays to advantage against a snow-white matrix of
Dioptase
$2,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An excellent single crystal of emerald green gemmy-translucent Dioptase measuring to a good 1.5cm with great
Willemite with Calcite
$4,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A fine specimen of translucent blue Willemite displaying a pleasing botryoidal form with a druse of
Beryl Var. “Aquamarine”
$7,500
 Malyshevo, Russia
A tightly clustered group of strikingly vivid sky-blue Beryl crystals containing many gemmy zones from the
Beryl Var. “Emerald”
$1,200
 Guavio-Guateque Mining District, Colombia
A busy group of bright mid-emerald-green Beryl crystals of the variety “Emerald” from the Guavió-Guatéque
Hemimorphite
$1,850
 Ojuela Mine, Mexico
An exquisite small cabinet specimen of perfectly formed milky-white Hemimorphite crystals densely coating a
Quartz Var. “Eisenkiesel” on Fluorite
$5,000
A magnificent large cabinet display specimen of the “Eisenkiesel” variety of Quartz richly covering a bed of
Hemimorphite
$5,000
A stunning folded bed of mamillated deep sky-blue Hemimorphite from the Sa Duchessa Mine at Oridda in
Hemimorphite
$350
Intense sky-blue botryoidal Hemimorphite forms a 0.5 cm thick crust over a finely brecciated light tan
Quartz Var. “Amethyst” with Prehnite
$1,200
 Goboboseb Mountains, Namibia
A beautiful 8.3 x 2.5 x 1.6 cm transparent Quartz crystal with wispy purple “Amethyst” zones from the
Olivenite on Quartz
$1,250
A vein section of rusty, iron-stained Quartz is totally encrusted across its top surface with prismatic
Fluorite with Calcite and Quartz
$700
 Weardale, England
Chains of stubby cream Calcite crystals, of about 0.8 cm, run across a large cluster of pale mauve cubic
Goethite with Quartz
$300
A splendid small cabinet example of a Goethite-Quartz vein section from the Restormel Royal Iron Mine at