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RM709   Malachite

A very brilliant and huge size crystallized primary malachite. The prismatic needle like crystals present diverging and fan-shaped groups and have an excellent luster. Color is very intense and characteristic with some zoning. With some matrix included in malachite. A very representative specimen and from a classic Katanga mining area.

Size: 11,3 x 6,5 x 6,0 cm
Main crystal: 13 mm (aggr)
Found in 2013.
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RM728   Malachite

A very brilliant crystallized primary malachite. The prismatic needle like crystals present diverging and fan-shaped groups and have an excellent luster. Good transparence. Color is very intense and characteristic with some zoning. A very representative specimen and from a classic Katanga mining area.

Found in 2013.
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RM713   Malachite

A very brilliant crystallized primary malachite. The prismatic needle like crystals present diverging and fan-shaped groups and have an excellent luster. Good transparence. Color is very intense and characteristic with some zoning. A very representative specimen and from a classic Katanga mining area.

Size: 7,0 x 5,4 x 4,6 cm.
Main crystal: 18 mm.
Found in 2013.
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RM594   Kamotoite-(Y)

The kamotoite-(Y) are the intense yellow crystalline sprays, with individual flat-laying crystals to 5 mm. In the same sample we can observe probably a small vein of yellow to orange brilliant uranophane.Kamoto is the Type Locality for the species. A very rare uranium and ytrium mineral from Katanga.

Size: 4,4 x 2,0 x 1,8 cm.
Presents radioactive activity.
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RM568   Cobaltoan calcite with dolomite and quartz

On a compact quartz matrix we have different groups of cobaltoan calcite crystals with intense purple to fuchsia color, with transparence and well defined faces and edges. It is accompanied by spherical aggregates of snowy white dolomite and some quartz crystals. A classic from Katanga Copper Crescent mines.

Size: 5,4 x 4,3 x 4,9 cm.
Main crystal: 6 x 2 mm.
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RM800   Plancheite

This specimen shows spherical aggregates of plancheite, formed by several acicular crystals in a radiated shape. On the surface of the spheres we can enjoy curious honeycomb structures. Color is between blue and blue-gray. On a vug layered by small quartz crystals. From a locality not well represented in collections for this species.

Size: 7,5 x 5,7 x 5,0 cm.
Main crystal: 4 x 4 mm.
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RM541   Cuprosklodowskite with baryte and malachite
Cu(UO2)2(SiO3OH)2·6H2O

Fantastic cuprosklodowskite specimen formed by several thin acicular prismatic crystals with a brilliant green to yellow color, very brilliant and transparent. Crystals have grown in cavities covered by dark green malachite. In one of them we can enjoy a great aesthetic group of tabular barite crystals, with toasted honey color and transparent, on which a beautiful acicular aggregate of cuprosklodowskite has grown. A small beauty.
This speciemn of uranyl
and copper silicate is from Musonoi, not Kalongwe. A complete sample.

Size: 7,5 x 6,0 x 4,5 cm.
Main crystal: 8 mm.
Ex-col. Joan Rosell.
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