Pseudomorphs

127 results

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

Kaolinite pseudomorph 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)

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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,

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

Chalcophyllite partially pseudomorphing to Chrysocolla

$300

Wheal Gorland, England

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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,

Buy Now View Item

Azurite with Malachite pseudomorphing after Azurite

$5,000

Tsumeb Mine, Namibia

Azurite from Tsumeb in Namibia occurred down through the mine as far as the 2nd Oxidation Zone and over the

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

Native Silver pseudomorphing after Dyscrasite

$1,200

Pribram, Czech Republic

The ancient mining district of Příbram in the Czech Republic produced many fabulous pseudomorphs of Native

Buy Now View Item

Native Silver pseudomorph after Dyscrasite

$900

Pribram, Czech Republic

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

Buy Now View Item

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,

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

Malachite pseudomorph after Azurite

$1,800

Touissit, Morocco

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

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

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite

$2,500

Tenke-Fungurume area, DR Congo

An unusual double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated in

Buy Now View Item

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

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite

$400

Tenke-Fungurume area, DR Congo

Bladed and stalagmitic habits of Chrysocolla pseudomorphing after Malachite, itself pseudomorphing after

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite

$600

Tenke-Fungurume area, DR Congo

From the Tenke-Fungurume area of the Kolwezi mining district in the Democratic Republic of the Congo, this

View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$6,500

Tenke-Fungurume area, DR Congo

Pseudomorphs of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated in Quartz form an

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$5,000

Tenke-Fungurume area, DR Congo

An arresting large miniature double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,000

Tenke-Fungurume area, DR Congo

A spear-shaped double pseudomorph of intense sky-blue Chrysocolla replacing Malachite after Azurite and coated

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,750

Tenke-Fungurume area, DR Congo

This fine sculptural pseudomorph of vivid sky-blue Chrysocolla replacing Malachite after Azurite and coated in

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,300

Tenke-Fungurume area, DR Congo

A fabulous pair of broad, V-shaped crystals composed from double pseudomorphs of intense sky-blue Chrysocolla

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$1,200

Tenke-Fungurume area, DR Congo

Two prominent and one smaller crystal form an unusual double pseudomorph of intense sky-blue Chrysocolla

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$7,500

Tenke-Fungurume area, DR Congo

This museum-grade double pseudomorph of vivid sky-blue Chrysocolla replacing Malachite after Azurite and

Buy Now View Item

Chrysocolla ps. after Malachite ps. after Azurite with Quartz

$2,000

Tenke-Fungurume area, DR Congo

A delicate open cluster of double pseudomorphs of creamy duck egg blue Chrysocolla replacing Malachite after