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RM541   Cuprosklodowskite with baryte and malachite

Musonoi Mine, Kolwezi, Katanga, Congo, Democratic Republic of

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.
 

RM1975   Kasolite with malachite

Musonoi Mine, Kolwezi, Katanga, Congo, Democratic Republic of

Kasolite is one of my favorite species. In this sample (from Dr. Viñals, Barcelona) we can enjoy several vugs with lanceolated kasolite crystals. With the orange color, some transparent and isolated, some forming aggregates. Contarsting on the green matrix.


Size: 4.1 x 3.7 x 3.5 cm.

Presents radioactive activity.
 

RM1610   Kasolite with wulfenite and torbernite

Musonoi Mine, Kolwezi, Katanga, Congo, Democratic Republic of

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by wulfenite crystals of orange color. The matrix is partially covered by brilliant and transparent torbernite thin tabular crystals. With some malachite. A aesthetic sample from a classic locality, to be observed with attention, nowadays it is very difficult to see good samples like these.


Size: 3.8 x 2.8 x2.5 cm.
Main crystal: 1.5 mm

Excol. F. Coune (Belgium).
Presents radioactive activity.
 

RM1611   Kasolite with wulfenite and torbernite

Musonoi Mine, Kolwezi, Katanga, Congo, Democratic Republic of

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by wulfenite crystals of orange color. The matrix is partially covered by brilliant and transparent torbernite thin tabular crystals. With some malachite. A aesthetic sample from a classic locality, to be observed with attention, nowadays it is very difficult to see good samples like these.


Size: 4.0 x 3.6 x 2.8 cm.
Main crystal: 2 mm

Excol. F. Coune (Belgium).
Presents radioactive activity.
 

RM568   Cobaltoan calcite with dolomite and quartz

Mashamba West Mine, Kolwezi, Katanga, Congo, Democratic Republic of

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.

 

RM1790   Cuprite with calcite

Mashamba West Mine, Kolwezi, Katanga, Congo, Democratic Republic of

Group of very well defined cuprite crystals showing very unusual facets both for the species and for this classic locality for the species. They have very well defined faces of the cube and the octahedron, together with those of the dodecahedron. Under intense light the red transparency is observed, but the surface shows a gray patina, the years have passed away. They are placed on a cavity of brilliant calcite crystals. An interesting rarity.


Size: 7.3 x 5.5 x 4.2 cm.
Main crystal: 9 x 5 mm.
Found in ca. 1980.

Col. Jordi Povill (Olesa de M.) No. 544
Price: 190 €Buy
 

RM1600   Cuprite and Malachite

Mashamba West Mine, Kolwezi, Katanga, Congo, Democratic Republic of

These cuprite crystals from Kolwezi mines are a classic of worldwide mineralogy. In this specimen the crystal shows defined faces and edges, with intense red color under the light. It is disposed in a cavity with needle malachite crystal aggregates. Crystal has no damage, the back side shows natural rounded forms. A very aesthetic and difficult to see specimen.


Size: 7.2 x 5.2 x 4.7 cm.
Main crystal: 12 x 7 mm.

Classic locality
 

RM800   Plancheite

Mashamba West Mine, Kolwezi, Katanga, Congo, Democratic Republic of

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.

 

RM594   Kamotoite-(Y)

Kamoto East Open cut, Kamoto, Kolwezi, Katanga, Congo, Democratic Republic of

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.
 

RM1392   Kamotoite-(Y)

Kamoto East Open cut, Kamoto, Kolwezi, Katanga, Congo, Democratic Republic of

The kamotoite-(Y) are the intense yellow crystalline sprays, with individual flat-laying crystals to 5 mm. brilliant and transperent. 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: 2.5 x 2.3 x 2.0 cm.
Main crystal: 5 mm.

Mineral analizado - Analyzed specimen
Presents radioactive activity.


 

RM1613   Sklodowskite

Kamoto East Open cut, Kamoto, Kolwezi, Katanga, Congo, Democratic Republic of

Very aesthetic group of sklodowskite crystals, showing a very sharp prismatic crystals, with transparence and intense yellow color. Old and really good specimen from col. Coune (B) collection, found in 1960's. This species is named by Marie Skłodowska-Curie.


Size: 5.8 x 5.4 xd 3.6 cm.

Excol. F. Coune (Belgium).
Presents radioactive activity.
 
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