Rare Minerals

143 results

 Cabeça do Cachorro Claim, Amazonas
Ludlamite is a rare iron-manganese-magnesium phosphate and this very fine specimen shows the wonderful quality
Klockmannite with Paratellurite (?)
 Moctezuma Mine (Bambolla Mine), Sonora
An extremely rare specimen of the copper-selenium alloy Klockmannite, a copper selenide (CuSe).  Golden
 Potaro River, Potaro-Siparuni Region
An extremely rare specimen of the palladium-mercury alloy Potarite, a palladium amalgam (PdHg).  This
 Ojuela Mine, Mexico
A neat miniature of the rare zinc arsenate mineral Legrandite forming vivid acidic bright lemon-yellow
Wherryite with Diaboleite
 Mammoth-St. Anthony Mine, USA
A superbly-rich miniature of the lead-copper sulphosilicate Wherryite and lead-copper halide Diaboleite from
Frohbergite with Native Tellurium
 Bennett Lake area, Ontario
Contained in a Perspex micromount box, this small thumbnail is rich in metallic bright tin-white plates of
Native Gold with Hessite and Goldfieldite
 Tintic District, Utah
An unusual group of gold minerals occurring in one specimen from the Tintic District in Juab County, Utah,
Awaruite (Josephinite)
 Josephine County, Oregon
A smooth water-worn, silvery-black metallic nugget of Awaruite, a natural alloy of nickel and iron (Ni3Fe),
Sincosite with Minyulite
 Ross Hannibal Mine, South Dakota
A rare specimen of the calcium-vanadium phosphate Sincosite occurring as lime green tetragonal plates to about
 Broken Hill, Australia
A very rich specimen of the rare mineral Bannisterite from the Broken Hill Mining District of New South Wales,
 N'Chwaning Mines, South Africa
Small acid-yellow to much larger burnt toffee-yellow crystals of Sturmanite richly coat a pinkish-grey matrix
 Talnakh Cu-Ni Deposit, Eastern-Siberian Region
A polished ore-section mount of metallic grey areas in a 'Chalcopyrite'-like matrix from the Talnakh
 Koashva Open Pit, Northern Region
Rare metallic bronze-brown area of Chlorbartonite in a white matrix with a number of other undefined species
 Portland Mine, Colorado
A large Quartz specimen is loaded with bright metallic yellowish to tin white crystals of the rare Gold
 Baia de Aries, Romania
A 5 x 4 cm area of a 1 cm thick Quartz plate is almost entirely encrusted with bright silver Sylvanite from
 Csordakuti Mine, Hungary
Mellite is a very unusual mineral species in that it is one of the very few organic minerals, with a chemistry
 Schlarbaum Quarry, Austria
Well-developed intergrown and a single pastel green crystalline hemisphere of the rare mineral
 Abundancia Mine, Antofagasta Region
Sky-blue lustrous areas of the rare species Lemanskiite NaCaCu 5 (AsO 4 )4Cl · 5H 2 O are formed
Köttigite-Parasymplesite series
 Ojuela Mine, Mexico
A particularly fine specimen of Köttigite-Parasymplesite series forming excellent displays of radial
 Wheal Gorland, England
A very fine and rich specimen of Liroconite from  Wheal Gorland, St. Day, Cornwall. Excellent blue to
Pyrargyrite with Argentopyrite and Native Arsenic
 Samson Mine, Germany
A complex specimen composed of concentric nested shell-like druses of light-grey Native Arsenic heavily
 San José Mine, Oruro Department
The lead-silver-antimony sulphosalt mineral, Andorite, is seldom seen in collections and this fine specimen is
A miniature containing two nickel arsenate minerals, Maucherite and Nickeline, from the Mansfeld Basin in
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A rich small cabinet specimen of Beudantite and Segnitite, both occurring as equant micro-crystals and
Zincolivenite with Schultenite
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Zincolivenite in bright green druse of intergrown crystals with the rare mineral Schultenite in
 Sacarimb (Nagyag), Romania
Abundant platy metallic grey crystals measuring to around 5mm of the rare mineral Nagyagite stand on
 Kipushi Mine, DR Congo (Zaire)
Kipushite is a copper-zinc phosphate and occurs on this specimen as lustrous turquoise-green micro-crystals
 Leadhills, Scotland
Substantial platy crystals of Leadhillite are seen atop the specimen in a cavity with crystals of
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A sharply formed lustrous black crystal of Schneiderhohnite measuring to 1.2cm displaying the crystal habit to
Szenicsite with Powellite
 Jardinera No 1 Mine, Chile
A large and impressive specimen of the rare mineral Szenicsite, a copper molybdate, from the type locality at
Inesite with Orlymanite
 N'Chwaning Mines, South Africa
Crystalline radial botryoidal red-pink Inesite displays the light pink to good advantage around the edge of
 Locality -> Barra do Salinas, Brazil
Hydroxyl-Herderite is a calcium-beryllium phosphate found in pegmatites at many localities but is uncommon at
 N'Chwaning I Mine, South Africa
Charlesite is a very rare calcium-aluminium sulphate and a member of the Ettringite group.  This species
Powellite is a calcium molybdate and member of the Scheelite Group.  While typically opaque and neutrally
A stunning specimen of the rare calcium-cerium carbonate fluoride Synchysite-(Ce) from Pizzo Bandiera in the
 Kambove District, Katanga (Shaba)
Equant, mirror-bright, metallic silver crystals of the copper-cobalt sulphide Carrollite are scattered over a
 Imiter Mine, Morocco
This is a great looking specimen of a very vuggy, light grey sulphide matrix, richly covered in small acicular
 Oksoyekollen, Norway
An off-matrix, sharp, perfectly terminated crystal of the rare calcium apatite mineral Hydroxylapatite from
 Wheal Gorland, England
Well formed double wedge habit crystals of fine lustrous blue Liroconite from Wheal Gorland, St. Day,
Calaverite with Fluorite/Quartz
 Cresson Mine, Colorado
Bright metallic brassy bladed crystals of the rare gold telluride mineral Calaverite measuring to 4mm are
Pearceite (Arsenpolybasite) with Acanthite
 Uchucchacua Mine, Peru
A rare and very rich specimen of intermixed Pearceite in abundant platy silvery-grey crystals measuring
Volborthite with Malachite on Chrysocolla.
 La Verde Mine, Chile
Bright yellow-green crystal druse of Volborthite occupies an area of up to 6cm x 3cm over a blue
 Chuquicamata Mine, Chile
Rich lustrous green crystal specimen of the rare mineral Natrochalcite abundantly covers areas of a white
 Kabwe Mine (Broken Hill Mine), Zambia
A very rich and fine specimen of the rare phosphate Tarbuttite from the Kabwe Mine (Broken Hill Mine),
 Touissit, Morocco
A particularly large specimen for a Moroccan Phosgenite forming well developed rounded barrel-like to
Giessenite-Izoklakeite Series
 Goldzeche, Carinthia
A very rare rich specimen of a Giessenite-Izoklakeite series mineral crystals forming
Xanthoconite with Proustiite and Stephanite on Native Arsenic
 Jáchymov District, Bohemia
An old and very rare specimen probably from before 1921 of the rare silver mineral Xanthoconite with abundant
Arseniosiderite with Roselite on Calcite
 Agoudal Centre Quarry, Drâa-Tafilalet Region
A large, rare, open vug measuring to 6 cm x 3 cm of Roselite is completely lined with velvety lustrous