Rare Minerals

310 results

Clausthalite with Siderite
$250
 Eskaborn Adit, Saxony-Anhalt
If this specimen of Clausthalite with Siderite were featuring in one of our occasional ‘Beauty and The Beast’
Pucherite
$850
 Pucher Shaft, Germany
Hundreds of sub-millimetre Pucherite crystals cover the top surface of a heavy grey matrix. This specimen is
Kutnohorite
$3,500
 Wessels Mine, South Africa
Kutnohorite is perhaps one of the strangest looking of all minerals, more organic than mineral in structure
Xanthoconite
$500
 Trebsko, Czech Republic
Micro-crystals of the rare silver-arsenic sulphosalt Xanthoconite form tiny clusters of orange-red to
Dufrénite
$450
 Hoff auf mich Mine, Thuringia
A semi-lustrous black druse of micro-crystallised Dufrénite mostly covers dark olive green micro-botryoidal
Argentopyrite
$3,500
 Samson Mine, Germany
Argentopyrite is a rare silver-iron sulphur trioxide, a very seldom encountered species. This miniature is a
Melilite
$1,750
 San Rocco, Lazio
Labelled Melilite, this superbly crystallised specimen is from San Rocco in the Viterbo Province of Lazio,
Nagyágite
$800
 Sacarimb (Nagyag), Romania
Nagyágite is a rare lead-gold-tellurium-antimony sulphosalt often containing other metallic elements and forms
Plagionite
$250
 Wolfsberg, Saxony-Anhalt
Plagionite is an extremely rare lead sulphosalt, the term sulphosalt indicating the presence of sulphur and
Connellite
$850
 Wheal Unity, Cornwall
Connellite is a rare hydrous copper chloro-sulphate and occurs in several locations around Cornwall. This
Andrewsite (Hentschelite-Rockbridgeite-Chalcosiderite mixture)
$400
 Phoenix United Mine, Cornwall
The classic Cornish mineral Andrewsite is actually a mixture of Rockbridgeite and Hentschelite with minor
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
Phosgenite
$400
 Bage Mine, England
Phosgenite from its type locality at Bage mine close to Cromford in Derbyshire, England, is one of those “must
Chalcoalumite, Ajoite, Brochantite on Native Copper and Cuprite
$100
 New East Wheal Russell, England
A complexly mineralised miniature displaying Chalcoalumite (hydrous aluminium-copper sulphate), Ajoite
Witherite
$150
 A4119 road cutting, Rhondda-Cynon-Taff (Glamorgan)
Occasionally minerals specimens are found in unexpected new locations following engineering work which has
Harmotome
$250
 Strontian, North West Highlands
Despite being one of the rarer zeolites, Harmotome is found as excellent crystal groups from around the
Acanthite with Stephanite
$850
 Johanngeorgenstadt, Germany
Intermixed Acanthite with Stephanite form a rich silver-black metallic crystalline group of part octahedral
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
Helvine
$750
 St. Richard Mine (Friedefürst Mine), Saxony
Helvine, a rare beryllium manganese silicate, forms sharp buttery lemon yellow tetrahedral crystals richly
Allargentum
$450
 Shaft 371, Germany
Allargentum is a natural alloy of silver and antimony. This impressive small cabinet specimen is from Shaft
Stolzite
$3,500
 Sainte-Lucie Mine, Occitanie
Although Stolzite is a relatively rare mineral it is well known from several famous localities worldwide.
Sylvanite
$3,500
 Săcărâmb (Nagyág), Hunedoara County
Sylvanite is a rare silver gold telluride and is one of the almost eighty species from the polymetallic
Nagyagite
$9,500
 Săcărâmb, Hunedoara
The rare lead-gold-tellurium sulphosalt Nagyagite is one of the iconic mineral species from its type locality
Krennerite
$3,500
 Săcărâmb, Hunedoara
The Săcărâmb district in western mid-central Romania is this country’s only known deposit of tellurium and
Meteorite Chondrite
$2,500
 Transylvania, Romania.
This interesting block of Chondrite Meteorite is from the historic region of Transylvania in Romania and
Plagionite
$800
 Wolfsberg, Saxony-Anhalt
A rich, small miniature of the rare lead sulphosalt Plagionite forming blocky, silvery steel grey metallic
Clausthalite
$2,000
 Tilkerode (Abberode), Saxony-Anhalt
This small cabinet specimen displays micro-crystals of the rare lead selenide (PbSe) Clausthalite distributed
Chalcophyllite
$275
 Wheal Gorland, England
A fine small miniature of turquoise green Chalcophyllite crystals lining two vugs in a grey and tan,
Azurite on Smithsonite
$200
 Pikedaw-Grizedales Veins, North Yorkshire
A very rare specimen of Azurite from the Pikedaw-Grizedales Veins near Craven in North Yorkshire, England.
Mendipite
$150
 Torr Works Quarry, England
A good representative specimen of the rare lead oxychloride Mendipite from Torr Works quarry at Cranmore,
Galena with Slickenside
$150
 Grassington, UK
A small cabinet size slab of Calcite, Fluorite and Galena veinstone with one side featuring a solid face of
Agrellite
$150
 Kipawa alkaline complex, Canada
This cleaved long block of the rare silicate Agrellite is from its type locality in the Kipawa alkaline
Joséite
$1,500
 Carrock Mine, England
Joséite is a rare bismuth-tellurium sulphide which occurred in the mineralised veins worked in Carrock
Covellite with Colusite, Bornite and Quartz
$2,000
 Butte, USA
Colusite is a rare copper vanadium arsenic sulphide which occurs on this large miniature as tiny golden-bronze
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
Argentopyrite and Pyrargyrite
$300
 Pöhla-Tellerhäuser Mine, Saxony
An interesting miniature of crystallised Argentopyrite and Pyrargyrite from the Pöhla-Tellerhäuser mine in the
Groutite
$600
 Emilie Mine (Bülten-Adenstedt Mine), Germany
Groutite is a rare manganese hydroxide that is known to form excellent crystallised specimens at the Emilie
Berzelianite
$300
 Neu Karolinen, Germany
Berzelianite is a rare copper selenide which typically occurs as semi-lustrous, black metallic masses within
Clausthalite with Calcite
$900
 Zorge, Germany
Clausthalite is a rare lead selenide (PbSe) and on this small cabinet specimen forms granular metallic patches
Native Iron
$650
 Bühl, Germany
Despite the abundance of iron in the Earth’s crust, Native Iron is exceedingly rare.  Such deposits are
Paraguanajuatite
$500
 Falun Mine, Sweden
The extremely rare mineral Paraguanajuatite is a bismuth selenide and I don’t ever recall handling one
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
Diaphorite
$4,000
 Vojtěch Mine, Bohemia
A 7 mm long crystal of Diaphorite, a rare silver-lead-antimony sulphosalt, sits flat in a Quartz crystal-lined
Ludlamite on Pyrite
$4,500
 Huanuni mine, Bolivia
Most collectors are more than familiar with the iron phosphate Ludlamite, but to have crystals set on a matrix
Fluor-liddicoatite
$4,500
 Estatoby (Antanetinilapa), Madagascar
The rare tourmaline species Fluor-liddicoatite is the fluorine analogue of Liddicoatite and this magnificent
Talmessite var. Cobaltian
$2,500
 Aghbar Mine, Morocco
Moroccan minerals are a favourite amongst collectors because of their diversity of species, vibrant colours
Ephesite
$2,000
 Postmasburg Manganese Field, South Africa
A superbly rich, small cabinet specimen of the rare mica silicate Ephesite from the Postmasburg Manganese