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RM1094   Bixbyite

N'Chwaning III Mine, Kalahari manganese fields, Kuruman, Northern Cape, South Africa

Most people do not know that these come from anywhere but Utah, but here is a Kalahari Manganese fields bixbyite specimen. A druse of highly lustrous, very sharp interpenetrated cubes of black bixbyite from this famous locality. An excellent specimen for the locality. A true rarity.


Size: 3.8 x 3.5 x 2.0 cm.
Main crystal: 8 x 7 mm.
Found in 2012.

 

RM1104   Sturmanite

N'Chwaning III Mine, Kalahari Manganese Fields, Kuruman, Northern Cape, South Africa

In this specimen we can see a group of lenticular sturmanite crystals, brilliant, with well defined faces and edges. Color is yellow to greenish. Noted for its size and transparency. A very good choice...


Size: 4.5 x 3.0 x 1.4 cm.
Main crystal: 12 x 10 mm.
Found in 2014.

 

RM1105   Sturmanite with brucite

N'Chwaning III Mine, Kalahari Manganese Fields, Kuruman, Northern Cape, South Africa

In this specimen we can enjoy a rich group of lenticular sturmanite crystals orange, bright, with a yellow to orange color, transparent and with very sharp faces and edges. It is accompanied by rosettes of greenish brucite, a magnesium hydroxide. In the same specimen there are two very interesting species for systematic and aesthetic collectors.


Size: 4.3 x 3.4 x 2.8 cm.
Main crystal: 4 x 3 mm.
Found in 2014.

 

RM1050   Hematite

N'Chwaning III Mine, Kuruman, Kalahari manganese fields, Northern Cape, South Africa

Group of very sharp hematite crystals, one of them of greater size and rich in faces. We can observe the positive and negative rhombohedrons truncated by the pinacoid and perfectly visible the hexagonal dipyramid well developed. Metallic luster is excellent and it has an intense black color. A very interesting speciemen of this South African mine.
It comes from the specimens of Luis "Louie" Bravi Antonio Teixeira Leite (1942-1999), a Portuguese mineral dealer who lived many years in South Africa.


Size: 2.8 x 2.5 x 2.5 cm.

Ex-coll. M. Ecker - Louie Leite


Price: 40 €Reserved
 
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