Pseudomorphs

127 results

Quartz ps. after Calcite
$300
 Crinnis Mine, Cornwall
Crinnis mine is situated by the coast to the south east of St. Austell at Carlyon Bay, just east of
Smithsonite pseudomorph after Calcite
$350
 [Derbyshire], England
A fascinating pseudomorph of Smithsonite after Calcite, originally labelled as from Cornwall, but since
Native Copper with Cuprite
$350
 St Day United Mines, Cornwall
The original Poldice mine was mining tin as early as 1748, becoming part of the St. Day United Mines group
Tetrahedrite and Chalcopyrite on Quartz ps. after Baryte
$1,600
 Herodsfoot Mine, England
A spectacular cabinet specimen displaying to perfection a true classic combination of minerals form Herodsfoot
Dolomite ps. after Calcite with Pyrolusite
$500
 Niederschlema, Germany
An aesthetic group of five scalenohedral Calcite crystals to 5.5 cm tall, the outer shells of which have been
Native Silver ps. after Dyscrasite
$1,500
 Příbram District, Czech Republic
This Native Silver pseudomorphing after Dyscrasite is a superb and quite spectacular small cabinet specimen
Kaolinite ps. after Orthoclase
$900
 Goonbarrow China Clay Pit, England
The superb Kaolinite pseudomorphs after Orthoclase Feldspar found in many of Cornwall’s China clay pits (CCPs)
Ferberite after Scheelite with Scheelite
$350
 Drakelands Mine, England
A rarity from the Drakelands mine (formerly Hemerdon mine and Hemerdon Bal) at Sparkwell in south Devon. A
Marcasite-Pyrite pseudomorph after Calcite
$150
 Axbridge Hill, Somerset
An interesting and rare Marcasite-Pyrite pseudomorph after Calcite from Axbridge Hill in the Mendip Hills,
Galena ps. after Pyromorphite
$8,000
 Kautenbach Mine, Rhineland-Palatinate
The Kautenbach mine near the town of Traben-Trarbach in Rhineland-Palatinate, Germany, is famous for its
Bindheimite and Malachite ps. after Bournonite
$2,500
 Hüttenberg, Carinthia
Bindheimite is a hydrous lead antimony oxide produced from the alteration of other ores and is a species still
Calcite on epimorph after Fluorite
$300
 Cambokeels Mine, England
An interesting cabinet specimen of Calcite crystals covering a complex framework of Quartz epimorphs after
Bornite pseudomorph after Chalcocite
$900
 Levant Mine, England
This excellent thumbnail pseudomorph of Bornite after Chalcocite is from Levant mine at Trewellard near to St
Quartz pseudomorph after Fluorite
$650
 Wheal Mary Ann, England
A creamy white dome of Chalcedony Quartz forming pseudomorphs replacing intergrown octahedral Fluorite
Native Silver pseudomorphing after Dyscrasite
$300
 Uranium Mine No. 21, Central Bohemia Region
A rich and well-priced miniature of Native Silver, mainly pseudomorphing after Dyscrasite, a silver
Plumbogummite ps. after Pyromorphite with Pyromorphite
$3,500
 Yangshuo Mine, Guangxi Zhuang Autonomous Region
A superb small cabinet specimen of Plumbogummite pseudomorphing after Pyromorphite on one surface and
Fluorite with Baryte, on Quartz epimorph after Calcite
$250
 Wölsendorf Fluorite Mining District, Bavaria
For everyone unfamiliar with the more detailed geography of Germany, the Wölsendorf Fluorite Mining District
Amphibole var. Uralite (Actinolite ps. after Diopside)
$200
 Calumet Mine, Colorado
Uralite, named for the Urals Region of Russia, is the name given to pseudomorphs of the Amphibole Group and
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
Galena on Quartz ps. after Baryte
$300
 Herodsfoot Mine, England
A cabinet specimen from Herodsfoot mine at Lanreath in Cornwall, England, displaying fine pseudomorphs of
Tennantite after Azurite
$1,500
 Tsumeb Mine, Oshikoto Region (Otjikoto Region)
A well-known yet rare pseudomorph of bladed Azurite completely replaced by metallic dark grey Tennantite, the
Azurite with Bayldonite and Malachite ps. after Azurite
$600
 Tsumeb Mine, Namibia
This quite delightful miniature of beautifully crystallised Azurite is a busy and interesting specimen because
Azurite with Malachite ps. after Azurite
$3,500
 Chessy-les-Mines, Auvergne-Rhône-Alpes
A gorgeous group of tabular Azurite crystals with some areas pseudomorphing to Malachite after Azurite, from
Chrysocolla ps. After Malachite ps. After Azurite with Quartz
$900
 Tenke-Fungurume area, DR Congo
A completely naturally flat plate of dark green Malachite is overgrown with pastel sky-blue Chrysocolla
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 pseudomorph after Cuprite on Calcite
$600
 Tsumeb Mine, Namibia
This is a lovey and rare example of Malachite pseudomorphing after Cuprite from the Tsumeb mine in
Hematite ps. after Magnetite var. Martite
$600
 Payún volcano, Mendoza Province
A stunning and classic pseudomorph of Hematite after Magnetite from the Payún volcano in Mendoza Province,
Chrysocolla ps. after Malachite ps. after Azurite with Quartz
$2,500
 Tenke-Fungurume area, DR Congo
A super-unusual small cabinet specimen of vivid sky-blue Chrysocolla preferentially coated with orange-tan
Malachite pseudomorph after Azurite
$400
 Tsumeb Mine, Namibia
A choice large thumbnail specimen of Malachite pseudomorphing after Azurite forming a 2.0 x 0.9 x 0.4 cm
Cerussite after Anglesite with Coronadite
$1,250
 Broken Hill Mine, Australia
A large cabinet specimen of sooty black Coronadite thickly coating crystals of Cerussite forming excellent
Chrysocolla ps. after Malachite ps. after Azurite with Quartz
$2,800
 Tenke-Fungurume area, DR Congo
The Democratic Republic of the Congo (DRC) is the largest country in sub-Saharan Africa and the Kolwezi mining
Chalcophyllite partially pseudomorphing to Chrysocolla
$300
 Wheal Gorland, England
A rare and most unusual miniature of Chalcophyllite partially pseudomorphing to Chrysocolla from Wheal Gorland
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 with Cerussite
$900
 Tsumeb Mine, Namibia
This ex-matrix pseudomorph of beautiful light emerald green Malachite replacing Azurite is from the Tsumeb
Orthoclase pseudomorph after Leucite
$800
 Kalehöyük, Kırşehir Province
The mineral occurrence at Kalehöyük in central Turkey is only known for two minerals, Leucite and Orthoclase,
Quartz with Quartz pseudomorphing after Calcite
$950
 Dal'negorsk, Far-Eastern Region
A quite extraordinary specimen of Quartz from the Dal'negorsk mining region in Primorskiy Kray in the
Malachite ps. after Azurite with Gartrellite and Azurite
$6,000
 Tsumeb Mine, Namibia
This amazing cabinet specimen is one of the richest in Gartrellites I have ever seen, not to mention the
Azurite partly pseudomorphing to Malachite
$7,500
 Tsumeb Mine, Namibia
Although Tsumeb mine is famous for its diversity of mineral species, its number of type localities and
Kaolinite pseudomorphing after Orthoclase
$400
 Melbur China Clay Pit, England
Colloquially known as a “Pig’s Egg” by miners and collectors alike, Kaolinite pseudomorphs after Orthoclase
Native Silver pseudomorphing after Pyrargyrite and Stephanite
$900
  Pribram, Czech Republic
Rare silver minerals frequently occurred in the ore deposits of the Příbram Mining District within the Czech
Native Silver pseudomorph after Dyscrasite
$900
  Pribram, Czech Republic
A magnificent ex-matrix large miniature of Native Silver pseudomorphing crystals of Dyscrasite from the
Tetrahedrite with Chalcopyrite, Galena and Quartz
$1,500
 Herodsfoot Mine, England
A quite magnificent specimen of Tetrahedrite with Chalcopyrite and Galena from Herodsfoot mine at Lanreath,
Cerussite ps. after Anglesite with Coronadite
$950
 Broken Hill, Australia
This large cabinet size Cerussite pseudomorphing after Anglesite and coated with Coronadite is a Broken Hill
Hematite ps. after Magnetite var. Martite
$500
 Payún Matrú volcano, Argentina
This is quite an amazing miniature specimen composed of aligned rows and columns of superbly crystallised
Native Silver ps. after Dyscrasite
$1,500
  Pribram, Czech Republic
This most unusual large miniature is a pseudomorph of Native Silver replacing the silver antimonide
Malachite pseudomorph after Azurite
$1,800
 Touissit, Morocco
The naming of specimens for their resemblance to something or other is widespread amongst mineral collectors,
Chrysocolla ps. after Malachite ps. after Azurite
$6,000
 Tenke-Fungurume area, DR Congo
During 2019 an excellent discovery of Chrysocolla replacing Malachite after Azurite and coated in Quartz, was
Chrysocolla ps. after Malachite ps. after Azurite
$1,200
 Tenke-Fungurume area, DR Congo
An outstanding cabinet-size, double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after