Expominer Virtual 2020

The Vault

ET86AM2: Very well-defined and lustrous octahedral Cuprite crystals pseudomorphosed by Malachite, on equally well-defined Azurite crystals with intense luster and a more vivid color than usual for this type of specimen. The quality of both the pseudomorphous Malachite and the Azurite is superior to what is known from the deposit.
A great classic of French mineralogy, with the added interest that Chessy-les-Mines is the type locality for the Azurite species.

The Chessy deposit is related to copper sulfide mineralization hosted in Paleozoic volcanic rocks, whose supergene alteration produced an exceptionally rich oxidation zone with secondary copper minerals, including Azurite, Malachite and Cuprite.
Chessy mines, Chessy-les-Mines, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes  France

Specimen size: 3.1 × 3 × 1.6 cm = 1.22” × 1.18” × 0.63”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

ER92AM2: Two rhombohedral Rhodochrosite crystals with polycrystalline growths, with a very vivid and uniform pink color and of a good size for the locality. Implanted on a doubly terminated Quartz crystal and covered by small elongated and brilliant Arsenopyrite crystals. High quality for the deposit.
Cassandra Mines, Chalkidiki Prefecture, Macedonia Department  Greece

Specimen size: 6.4 × 4.6 × 4.4 cm = 2.52” × 1.81” × 1.73”

Main crystal size: 3.3 × 2.6 cm = 1.30” × 1.02”

NF88AM2: Druse of Pyromorphite crystals with well defined faces and edges, many of them with lustrous, deeply hoppered faces and olive-green color. The specimen, an old Spanish classic from the Joaquín Folch duplicate collection, was sold by J. Fabre to J.H. Marshall, from where it ended up in a Spanish collection and from there back to us. The labels of the Folch collection, the previous Fabre Minerals collection, the label and the record of the Marshall collection and the label of the last collection of provenance will be delivered to the buyer.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain (±1910)

Specimen size: 8.4 × 7.4 × 6 cm = 3.31” × 2.91” × 2.36”

Main crystal size: 1.6 × 0.9 cm = 0.63” × 0.35”

EB27AM2: Tabular Vanadinite crystals on matrix, translucent, brilliant, and with the intense and vivid red color that characterizes many of the specimens found in the year 2017 in the area of what was the ACF Mine.
ACF Mine area, Mibladen mining district, Mibladen, Midelt, Midelt Province, Drâa-Tafilalet Region  Morocco (14/05/2017)

Specimen size: 8.2 × 7 × 2.7 cm = 3.23” × 2.76” × 1.06”

Main crystal size: 1.7 × 1.3 cm = 0.67” × 0.51”

EA62AM2: Groups of flat prismatic Bertrandite crystals, very sharp and well defined, many of them doubly terminated, which contrast with the smoky tones of the group of Quartz crystals, partially covered by small Pyrite crystals. An excellent specimen of a rare species from a currently extinct locality.
Kara-Oba mining district, Betpak-Dala (Bet-Pak-Dala) Desert, Karaganda Region  Kazakhstan (1985-1990)

Specimen size: 24 × 20 × 14 cm = 9.45” × 7.87” × 5.51”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”