Pseudomorphs

125 results

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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

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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

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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

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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

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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)

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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

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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,

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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

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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

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Calcite on epimorph after Fluorite

$300

Cambokeels Mine, England

An interesting cabinet specimen of Calcite crystals covering a complex framework of Quartz epimorphs after

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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

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Quartz pseudomorph after Fluorite

$650

Wheal Mary Ann, England

A creamy white dome of Chalcedony Quartz forming pseudomorphs replacing intergrown octahedral Fluorite

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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,

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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

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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

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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

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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

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Chalcophyllite partially pseudomorphing to Chrysocolla

$300

Wheal Gorland, England

A rare and most unusual miniature of Chalcophyllite partially pseudomorphing to Chrysocolla from Wheal Gorland

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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

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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

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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,

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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

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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

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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

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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

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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

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Native Silver pseudomorph after Dyscrasite

$900

Pribram, Czech Republic

A magnificent ex-matrix large miniature of Native Silver pseudomorphing crystals of Dyscrasite from the

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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,

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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

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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

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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

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Malachite pseudomorph after Azurite

$1,800

Touissit, Morocco

The naming of specimens for their resemblance to something or other is widespread amongst mineral collectors,

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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

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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

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Chrysocolla ps. after Malachite ps. after Azurite

$4,000

Tenke-Fungurume area, DR Congo

A stunning and showy cabinet-size, double pseudomorph of intense sky-blue Chrysocolla replacing Malachite

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Malachite ps. after Azurite with Azurite and Duftite

$800

Tsumeb Mine, Namibia

Within the world-famous Tsumeb mine in Namibia, Malachite pseudomorphing after Azurite was ubiquitous