Collection mineral

Adamite yellow green on a limonite gangue, with crystallization zones around the edge of the piece.
This specimen was discovered in the Ojuela mine, in the Mapimi region, Durango, in Mexico.
It measures 6.6 x 5.6 x 4.3 cm.
The weight of this sample is 149 grams.

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Collection mineral

Finished gem topaz crystal with a slight bluish colour.
It was harvested on the Jos plateau, located in the Plateau State of Nigeria.
Its dimensions are: 2.6 x 1.7 x 1.4 cm (maximum width).
The weight of this specimen is 13 grams.
(Measurements excluding base)

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Collection mineral

Octahedral crystals of gersdorffite on raw gersdorffite, with minor presence of green annabergite.
This specimen was discovered in Bou Azzer, in the Ouarzazate region of Morocco.
This sample displays dimensions of 4.6 x 2.9 x 2.1 cm.
The weight of this piece is 48 grams.
(Measurements excluding base)

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Collection mineral

Malachite bright, with vivid colour fibre crystallisation on one side and a darker appearance on the other side.
This piece comes from Mindigi, in the Haut Katanga region of Congo.
It measures 6.4 cm high by 3.7 cm wide and 2.5 cm thick.
Its weight is 54 grams.
(Measurements excluding base)

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Collection mineral

Hyalite opal completely covering a gangue of andesite.
This piece is reactive to UV, yellow under long UV and green under short UV.
It comes from the Kopasz Hill quarry, a site located in Tarcal, Hungary.
Its size is 9.1 x 5.6 x 3 cm.
The weight of this sample is 141 grams.

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Collection mineral

Sample of green actinolite rich in long shiny crystals embedded in talc.
Piece comes fromAfghanistan.
Its dimensions are 10.1 x 5.6 x 4.4 cm.
The weight of this specimen is 201 grams.

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Collection mineral

Interesting specimen of polytionite (mica group) bearing some black crystals ofaegirine.
This sample comes from the Mont Saint-Hilaire, located in the Quebec region of Canada.
It measures 3.3 x 2.8 x 2 cm.
The weight of this specimen is 12.6 grams.

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Collection mineral

Association of octahedral crystals of spinel black and crystals of forsterite.
This piece comes from the Parker mine located in Notre-Dame-du-Laus, Quebec, Canada.
It measures 2.5 x 2.2 x 1.4 cm.
The weight of this sample is 8 grams.

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Collector's mineral

Sample of cuprite raw cut and polished from the former collection of a BRGM geologist.
It was collected in Mashamba, located in the Katanga region of Congo.
This piece has dimensions of 3.5 x 2.5 x 2.5 cm.
The weight of this specimen is 56 grams.

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Collector's mineral

Geode piece featuring cubic crystals of galena on a bed of dolomite beige, lightly dusted with chalcopyrite.
This mineral comes from the Joplin mine, located in the Missouri region of the United States.
This piece has dimensions of 5.6 x 5.5 x 2.7 cm.
The weight of this sample is 123 grams.
(Measurements excluding base)

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Collection mineral

Crystal of baryte honey-coloured, transparent.
This sample comes from Four-la-Brouque, located in the region of Saint-Babel, Auvergne, in France.
This piece has dimensions of 6.5 x 2 x 1.6 cm.
The weight of this mineral is 70 grams.

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Collection mineral

Beautiful old piece on a gangue of bournonite crystals of sphalerite honey-coloured and transparent.
This piece originates from the La Mure mine, located in the Isère region of France.
This sample measures 6.9 x 3.8 x 3.9 cm.
The weight of this specimen is 176 grams.

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Collection mineral

Old sample of pyrrhotite associated with quartz and a bit of pyrite at the back.
This sample comes from Trepča, located in the Mitrovica region of Kosovo.
Its dimensions are 8.4 x 6.3 x 4 cm.
The weight of this piece is 311 grams.

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Collection mineral

Specimen of native copper taken from shale, from the Saint-Véran mine closed over 70 years ago.
This sample comes from the Hautes-Alpes region, Provence-Alpes-Côte d'Azur, in France.
It measures 7.3 x 3.4 x 1.4 cm.
The weight of this mineral is 40 grams.

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Collection mineral

Half-geode with an envelope in chalcedony blue and an internal crystallization of smoky quartz accompanied by a partial crystal of calcite.
This sample comes from Las Choyas, located in the Aldama region, Chihuahua, in Mexico.
Its dimensions are 8.5 x 7.1 x 4.1 cm.
The weight of this specimen is 293 grams.

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Collection mineral

Large crystal ofazurite with a bright colour and a beautiful lustre.
This mineral comes from Kerrouchen, located in the Khenifra region, Beni Mellal-Khenifra in Morocco.
It measures 4.6 x 2.3 x 1.2 cm.
The weight of this sample is 12.9 grams.
(Measurements excluding base)

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Collector's mineral

Landscape stone plaque also called Guohua stone from Guangxi, China.
It measures 19.2 cm wide, 8.9 cm high, and 0.6 cm thick.
It weighs 282 grams.

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Collection mineral

Crystals ofamethyst with a nice aerial presentation.
This piece comes from Las Vigas, State of Vera Cruz, in Mexico.
It measures 5.2 cm long by 3.8 cm high and 3.5 cm thick.
Its weight is 35 grams.

Collection mineral

Nice presentation for this adamite, showing two different crystallizations on an ochre gangue. The first forms a fan and the second presents more prismatic crystals.
This specimen comes from the Ojuela mine, Mapimi, Durango, Mexico.
It measures 4.3 cm high by 4 cm wide and 3.4 cm thick.
Its weight is 45 grams.

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Collection mineral

Lithophyse sawn and polished with a nice well-marked "red smile"!
It comes from the Esterel massif, Var, France.
Piece measuring 8.7 cm at the longest for 7.7 cm wide and 4.1 cm thick.
Its weight is 293 grams.
This chalcedony comes from an old stock.

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Collection Minerals

Beautiful architecture for this pyrite with crystals with truncated edges and finely striated faces.
This aesthetic piece comes from the Huaron mine in the Pasco province in Peru.
It measures 10.6 cm high by 6.4 cm wide and 5.2 cm thick.
Its weight is 482 grams.

Some discreet imperfections

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Collection mineral

Black tourmaline on feldspar, with a main crystal with dissolved termination and a few aquamarine crystals under the piece.
This schorl comes from the Erongo region in Namibia.
It measures 6 cm long by 5.6 cm wide and 4.3 cm thick.
Its weight is 127 grams.

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Collection mineral

Marcasite with a two-step crystallization and sperkise twins all around.
It comes from the cliffs of Cap Blanc-Nez in Escalles, Pas-de-Calais, France.
,This sample measures 4.2 cm long by 3.5 cm wide and 3.7 cm thick.
Its weight is 138 grams.
Piece treated for better preservation.

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Collection mineral

Classic sample of prehnite in helmet on matrix.
It comes from La Combe de la Selle, St Christophe-en-Oisans, Bourg d'Oisans, Isère, Auvergne-Rhône-Alpes, France.
This sample measures 6.4 cm long by 4.5 cm wide and 3.1 cm thick.
It weighs 77 grams.

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Collection mineral

Nice blue color for this botryoidal hemimorphite contained in a geode.
This sample comes from the Mfouati mine, located in the Bouenza region, in Republic of Congo.
It measures 6.5 x 4.1 x 3.3 cm.
The weight of this specimen is 100 grams.

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Collection mineral

Meionite gem crystal (a mineral from the scapolite group), finished and yellow in color.
It was collected in Soamatasy, located in the Ihorombe region at Madagascar.
Its dimensions are 4.3 x 2 x 1.3 cm.
The weight of this piece is 15 grams.
(Measurements excluding base)

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Collection mineral

Sample of dolomite grey partially covered by millimetric crystals of pyrrhotite.
It was collected at Morro Velho, located in the region of Minas Gerais in Brazil.
Its dimensions are 6.5 x 3.7 x 2.1 cm.
The weight of this mineral is 66 grams.
(Measurements excluding base)

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Collection mineral

Piece of fibrous malachite of beautiful color and shiny, crystallized all around.
This mineral originates from the Mindigi mine, located in the high Katanga region of the Congo.
It measures 10.5 x 6 x 4.7 cm.
The weight of this sample is 183 grams.

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Collection mineral

Interesting piece bearing a carpet of azurite crystals pseudomorphosed into malachite.
This mineral comes from the Milpillas mine in Mexico.
It measures 4.9 x 3.7 x 2 cm.
The weight of this specimen is 42 grams.
(Measurements excluding base)

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Showcase mineral

Interesting pseudomorphosis of well-defined azurite crystals in malachite.
It was collected in the Tsumeb mine, located in the Oshikoto region in Namibia.
This sample measures 4.4 x 4 x 2.6 cm.
The weight of this piece is 32 grams.
(Measurements excluding base)

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