Pseudomorphs

58 results

Marcasite ps. after Calcite
$150
 Axbridge Hill, Somerset
An interesting and rare Marcasite pseudomorph after Calcite from Axbridge Hill in the Mendip Hills, Somerset,
Goethite ps. after Marcasite
$250
 Wapping Mine, England
Cogwheel-like, angular crystals of rusty to dark chocolate-brown Goethite form excellent pseudomorphs after
Hematite ps. after Magnetite var. Martite
$600
 Payún volcano, Mendoza Province
A stunning and classic pseudomorph of Hematite after Magnetite from Payún volcano in Mendoza Province,
Hematite ps. after Baryte
$200
 West Cumberland Iron Ore Field, England
A hemispherical pseudomorph of Hematite after cockscomb crystal of Baryte from the West Cumberland Iron Field
Goethite coating Cerussite after Anglesite
$1,250
 Block 14, Australia
A really superb pseudomorph of Cerussite after Anglesite coated in very dark chocolate-brown Goethite, from
Hematite pseudomorph after Calcite
$2,800
 Harz, Germany
A superb and highly unusual specimen of Hematite pseudomorphing after Calcite from the Harz region of Lower
Siderite ps. after Calcite
$850
 Aggeneys, Northern Cape Province
A superb and aesthetic group of Siderite pseudomorphs after barrel-shaped Calcite crystals from Aggeneys in
Smithsonite pseudomorph after Calcite
$350
 Derbyshire, England
This Smithsonite pseudomorph after Calcite is a real old-timer and although only recorded as being from the
Rosasite pseudomorph after Azurite
$1,200
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A superb Rosasite pseudomorph after Azurite from the Tsumeb mine in Oshikoto Region, Namibia.  The upper
Limonite pseudomorph after Pyrite
$500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A matrix-free pseudomorph of Limonite after cubic Pyrite crystals.  The larger crystal measures 3.2 x 2.7
Malachite pseudomorph after Azurite
$1,250
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Sharp, chisel-like blades of deep bottle-green Malachite form a rich coverage of pseudomorphs after Azurite on
Goethite coating Cerussite after Anglesite
$3,500
 Kintore Opencut, Australia
A beautiful, perfectly formed specimen of coal-black Goethite coating razor-sharp crystals of Cerussite
Conichalcite pseudomorph after Calcite
$850
 Lavrion, Greece
A superb small miniature of limey-apple-green Conichalcite pseudomorphing after Calcite as 2 to 3 mm,
Malachite pseudomorph after Azurite
$250
 Tsumeb Mine, Namibia
An impressive miniature of Malachite pseudomorphs after Azurite from the Tsumeb mine in Namibia.  A
Malachite ps. after Azurite
$2,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A beautifully crystallised pseudomorph of Malachite after Azurite from the Tsumeb mine in the Oshikoto Region
Malachite ps. after Azurite
$650
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Crisp, well defined pseudomorphed crystals of deep holly-green Malachite after Azurite radiate from a small,
Native Copper rose pseudomorph after Azurite
$400
 Copper Rose Mine, USA
The Copper Rose mine at San Lorenzo, New Mexico, USA is considered an American classic, mainly because of its
Malachite pseudomorph after Cuprite
$250
 Chessy-les-Mines, France
From the type locality of Azurite, another Chessy classic in the form of a delightful Malachite pseudomorph
Bindheimite ps. after Bournonite with Malachite
$1,200
 Felixbau Mine, Carinthia
This specimen might be described as an ugly brute (!), but a rather beautiful ugly brute!!!  Mottled lime
Dolomite ps. after Calcite with Hematite
$500
 Niederschlema, Germany
An aesthetic group of five scalenohedral Calcite crystals to 5.5 cm tall, the outer shells of which have been
Pyrolusite ps. after Calcite
$450
 Ilfeld, Germany
An excellent pseudomorph of coal-black metallic Pyrolusite replacing a stack of rhombohedral Calcite crystals
Kaolinite pseudomorphing after Orthoclase
$400
 Melbur China Clay Pit, England
Colloquially referred to as a “Pig’s Egg” by miners, Kaolinite pseudomorphs after Orthoclase feldspar were
Dolomite cast after Calcite
$900
 Tsumeb Mine, Namibia
Micro-crystals of creamy butter-milk Dolomite form a superb epimorph after triangular nail-head Calcite
Malachite pseudomorph after Azurite
$1,800
 Tsumeb Mine, Namibia
A 4 cm wide blade of micro-crystallised deep emerald to leaf-green Malachite completely replacing an Azurite
Tennantite after Azurite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A well known if rare pseudomorph specimen of bladed Azurite completely replaced by metallic dark grey
Malachite pseudomorph after Azurite with Gartrellite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A gorgeous small cabinet specimen of velvet textured, deep emerald-green Malachite pseudomorphs replacing
Dolomite cast after Calcite with Duftite
$350
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A most attractive creamy-white Dolomite cast after Calcite with a silky-pearlescent lustre, taking the form of
Malachite pseudomorph after Azurite
$7,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
This specimen is a great example of how aesthetic Malachite pseudomorphing after Azurite can be at the Tsumeb
Rosasite pseudomorph after Azurite with Cerussite
$3,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
The Tsumeb mine in Namibia is noted for its many types of pseudomorphs and this example of Rosasite after
Calcite on Quartz with Siderite ps. after Stilbite
$350
 Geevor Mine, England
A stunning cabinet sized specimen of milky-white rosettes of glassy Calcite perched over Chlorite-coated
Calcite on Quartz with Siderite ps. after Stilbite
$600
 Geevor Mine, England
A large, flat, triangular matrix of milky Quartz with its top surface completely covered in stubby Quartz
Calcite pseudomorph after Aragonite
$450
 Torr Works Quarry, England
A superb example of Calcite pseudomorphs after Aragonite on a small matrix of sooty-black manganese oxides
Azurite with Malachite pseudomorph after Azurite
$8,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A spectacular and beautiful small cabinet specimen of glassy and gemmy deep blue Azurite crystals, silky
Pyromorphite with Quartz after Baryte
$1,500
 Hofsgrund, Germany
Rounded blades of Quartz, pseudomorphing after Baryte, each typically 5 x 1 cm, are coated with tiny
Azurite on Malachite pseudomorph after Tennantite on Cuprian Smithsonite
$3,000
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An outstanding large miniature of highly reflective botryoidal mounds of pale apple-green Cuprian Smithsonite
Arsentsumebite ps. after Mimetite with Azurite, Gartrellite, Olivenite and Malachite ps. after Azurite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
As the list of species suggests, this is one very busy specimen from Tsumeb with lots going on! It is unusual
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
Malachite ps. after Azurite with Cerussite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A highly vuggy and porous specimen of mixed Malachite and Cerussite from Tsumeb. The platy surfaces are coated
Malachite ps. after Azurite with Bayldonite ps. after Mimetite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Velvety deep emerald-green pseudomorphs of Malachite after Azurite stand proud of a surrounding carpet of
Gartrellite with Azurite and Malachite ps. after Azurite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A brecciated mixture of earthy yellowish lime-green Gartrellite; deep blue Azurite and bright emerald-green
Malachite Pseudomorph Azurite on Quartz
$800
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A fine Malachite pseudomorph after Azurite from the Tsumeb Mine, Namibia. Intergrown blocky crystals of
Galena Pseudomorph After Pyromorphite
$15,000
 Kautenbach Mine, Germany
A consummate German classic specimen of Galena after Pyromorphite from the Kautenbach Mine. Well formed
Malachite Pseudomorph After Azurite
$2,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An excellent pseudomorph of Malachite after Azurite from the famous Tsumeb Mine, Namibia. Well developed
Malachite Pseudomorph After Azurite With Duftite
$4,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
An excellent specimen of classic Azurite crystals replaced by Malachite from the Tsumeb Mine, Namibia. Well
Malachite Pseudomorph After Azurite
$3,750
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
Tsumeb Mine is well known for specimens displaying intriguing paragenesis. On this specimen it has a first
Dolomite  Pseudomorph Wulfenite
$12,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A super specimen of creamy crystallized thin druse of Dolomite and reddish Goethite mostly replaces excellent
Quartz Cast Epimorph After Fluorite
$100
 Holmbush Mine, England
A cast like specimen of white-creamy Quartz with epimorphic impressions of octahedral Fluorite crystals from
Quartz Pseudomorph After Fluorite
$650
 Wheal Mary Ann, England
Classic creamy white dome of Chalcedony Quartz as a pseudomorphic replacement of intergrown octahedral