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Fluorite with Pyrite from Moscona Mine, Asturias, Spain.

Golden Pyrite points on honey yellow Fluorite.

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Quartz from Segovia, Antioquia Department, Colombia.

Colorless Quartz cluster with divergent crystals.

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Fluorite from Berbes, La Cabaña, Ribadesella, Asturias, Spain.

Cubic purple Fluorite cluster. The largest crystal is 33 mm on edge. Uniform purple with a hidden orange color heart.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

A bent milky crystal.

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Corundum (variety sapphire) and Muscovite from Amboarohy (Zazafotsy Quarry), Zazafotsy, Ihosy, Fianarantsoa, Madagascar.

Blue Corundum (sapphire) crystal in matrix, showing the classic hexagonal prismatic habit.The crystal is 10mm tall. Also we find Muscovite.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

Colorless Quartz point.

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Pyrite from Navajún, la Rioja, Spain.

Crystal size: 42mm x 40mm x 36mm

[franjungle]

Andradite from Marki Khel, Spin Ghar Range, Khogyani, Nangarhar Province, Afghanistan.

A thumbnail example of Andradite with greenish yellow prismatic Epidote. The main crystal is 9mm lenght.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

Colorless Quartz crystal with complex striated faces, a great internal injury and sharp termination.

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Fluorite from Esperanza Mine, Melchor Muzquiz, Coahuila, Mexico.

Light purple translucent Fluorite in matrix with rough surface cubes.

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Copper from Ray Mines, Hot Tamale Peak, Mineral Creek District, Pinal Co., Arizona, USA.

Specimen acquired at Expominerales Madrid 2018 from Jordi who got it from Carles Curto.
Mr. Curto has been mineralogy curator in the Barcelona´s Geology Museum for more than thirty three years.
This specimen shows in the backside the Curto´s code (1972.15) and also includes two labels, one of them handwritten by Curto and the other one with his detailed overview.

“Copper arborescent aggregate with poorly defined crystals and an elongated prominent one”.

Mined in 1972. Ex Anthony J.W., Ex Williams S.A., Ex Bideaux R.A. (1977) - Ex Bideaux R.A., Ex Wallace T.C. (1997), Ex Joan Montal, Ex Carles Curto.
Overall size: 46mm x 49mm x 16mm. Crystal size: 24mm x 6mm x 3mm. Weight: 57 g.

[franjungle]

Malachite from Katanga, DR Congo.

Stalactites of bicolor Malachite.

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Calcite from Cornago, Arnedo, La Rioja, Spain.

Calcite pyramids on matrix, partially covered with some unknown white and brown mineral.

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Vanadinite on Barite from Mibladen, Morroco.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

Colorless Quartz crystal.

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Quartz (variety chalcedony) from Mamuju area, Sulawesi Barat Province, Sulawesi, Indonesia.

Botryoidal lilac chalcedony aggregates resembling a bunch of grapes. Known as “grape chalcedony” and also named “grape agate”. All around the specimen is full of this Quartz variety balls.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

Colorless Quartz and a clear needle crystal.

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Aurichalcite and Malaquite from Almería, Spain.

Field collected in 2013.

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Quartz with Goethite from San Cristobal, Municipio Suaita, Santander Department, Colombia.

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Quartz from Segovia, Antioquia, Colombia.

Clear Quartz cluster with crossed crystals.

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Elbaite on Quartz from Minas Gerais, Brazil.

The crystal is embraced by the white Quartz.

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Quartz from Peñas Blancas, Boyacá Department, Colombia.

Beryl (variety emerald) from Chivor, Colombia.

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Quartz from San Cristobal, Suaita, Santander, Colombia.

Colorless finger size Quartz crystal. There are three twisted prism faces at the base.

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Aurichalcite and Calcite from Almería, Spain.

Field collected in 2013.