Rare Minerals

175 results

 Nazareno, Brazil
An excellent orthorhombic crystal of Tantalite-(Mn) from the São João del Rei pegmatite province of Nazareno
 Abundancia Mine, Antofagasta Region
A rich miniature specimen of turquoise blue rare Lemanskiite with lighter blue possible Lavendulan from the
 Pribram, Czech Republic
A sharp, single crystal of Whewellite measuring to 2.9 cm, with a very apparent steep termination from
Tyrrellite with Umangite and Klockmannite
 Eagle Claims U-Cu-Se occurrence, Saskatchewan
A small miniature displaying three rare selenide species from the remote Eagle Claims U-Cu-Se occurrence in
Nagyágite with Rhodochrosite
 Sacarimb (Nagyag), Romania
The Archduke Stephan Collection contained many rare mineral species, including this excellent specimen of the
Ludlockite with Schneiderhöhnite
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A terrific combination of a number of rare mineral species from the Tsumeb mine in Namibia.  A roughly
Malachite pseudomorph after Azurite with Gartrellite
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A gorgeous small cabinet specimen of velvet textured, deep emerald-green Malachite pseudomorphs replacing
Lanthanite-(Ce) and Malachite
 Sneyd’s Level, Wales
Lanthanite-(Ce) is a rare cerium-lanthanum-neodymium carbonate whose type locality is the Britannia mine,
Native Silver with Dyscrasite
  Pribram, Czech Republic
A granular, milky quartz matrix is richly impregnated and coated with pinkish-silver Native Silver in hackly
 Gnade Gottes Mine, Lower Saxony
A tabular milky Quartz matrix is very richly shot-through with silvery-steel-grey Dyscrasite, a silver
Bournonite with Quartz
 Herodsfoot Mine, England
A first-class specimen of classic ‘cog-wheel’ ore, the lead-copper antimoniate, Bournonite, from Herodsfoot
 Wheal Gorland, England
A granular, large thumbnail matrix of iron-stained milky Quartz, is richly coated with intergrown blades of
Paravauxite with Childrenite
 Llallagua, Bolivia
An excellent specimen of the rare hydrated iron-aluminium phosphate hydroxide Paravauxite as very pale-yellow
Jadeite (Emerald Jade)
 Uru Fluss, Myanmar (Burma)
Of the two types of jade, Nephrite and Jadeite, Jadeite is by far the most precious and sought-after species.
 Chelopech Au-Cu Mine, Sofiya Oblast
A thumbnail fragment of the very rare copper-gold telluride species Kostovite from its type locality of the
 Nentsberry Haggs Mine, England
A very fine cabinet specimen of the rare barium-calcium carbonate, Barytocalcite, from Nentsberry Haggs mine
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A very rich thumbnail specimen of the rare mineral Leiteite displaying the characteristic
 Cabeça do Cachorro Claim, Amazonas
Ludlamite is a rare iron-manganese-magnesium phosphate and this very fine specimen shows the wonderful quality
 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
 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
 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
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
 San José Mine, Oruro Department
The lead-silver-antimony sulphosalt mineral, Andorite, is seldom seen in collections and this fine specimen is
 Mansfeld Basin, Saxony-Anhalt
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
 N'Chwaning I Mine, South Africa
Charlesite is a very rare calcium-aluminium sulphate and a member of the Ettringite group.  This species
 “Las Estobas”, Atacama Region
Powellite is a calcium molybdate and member of the Scheelite Group.  While typically opaque and neutrally
 Pizzo Bandiera, Piedmont
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
 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
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),