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RM657   Twinned Calcite

La Sambre quarry, Landelies, Montignies-le-Tilleul, Hainaut, Belgium

A good size and exceptional Belgium calcite specimen on matrix! Transparence and very rich in faces, good honey color. We can observe the complex twinning formed by rhombohedral crystals, visible twin plane. Perfectly disposed on a calcite matrix.
This
limestone quarry has provided beautiful calcite twins which have made enjoy during years the crystallography mineral collectors. Currently access is not allowed.


Size: 10,0 x 8,5 x 4,2 cm.
Main crystal: 38 x 30 x 18 mm.

 

RM1576   Destinezite

Argenteau, Visé, Liège, Belgium

Destinezite is a rare iron phosphate-sulphate, and its type locality is Argenteau (Belgium). This specimen that we present comes from this Belgian locality. It shows the characteristic shape, nodular, with a beige tone. Nowadays is impossible to collect there.


Size: 4.0 x 3.5 x 2.4 cm.
Found in ±1990's.

 

RM1525   Ardennite-(As)

Salmchâteau, Stavelot Massif, Vielsalm, Luxembourg, Belgium

Excellent specimen of Ardennite-(As), a rare silicate arsenate of manganese and aluminum, which has the type locality in this Belgian town. Formed by aggregates in parallel growth of prismatic flattened crystals, intense color between orange to yellow and luster. They are included in a quartz matrix. Collect samples is currently prohibited and specimens are very difficult to find (I know it). From the collection of P. Van Hee.


Size: 6.0 x 5.2 x 3.4 cm.
Main crystal: 27 x 18 mm.
Found in ±1960-65

Excol. Paul Van Hee (Belgium) - Type Locality
 

RM1524   Ardennite-(As)

Salmchâteau, Vielsalm, Luxembourg, Belgium

A very rich specimen of Ardennite-(As), a rare silicate arsenate of manganese and aluminum, which has the type locality in this Belgian town. Formed by some  aggregates in parallel growth of prismatic flattened crystals, intense color between orange to yellow and luster. They are included in a quartz matrix with hematite. Collect samples is currently prohibited and specimens are very difficult to find (I know it). From the collection of P. Van Hee.


Size: 5.8 x 4.5 x 4.3 cm.
Found in ±1960-65

Excol. Paul Van Hee (Belgium) - Type Locality
 

RM515   Marcasite with galena and Sphalerite on schalenblende

Carrière du Cimetière, Seilles, Andenne, Namur, Belgium

Groups of sharp marcasite crystals, very brilliant, showing the classic forms of "cockscomb". Very stable, defined and partially covering a matrix of small crystals of sphalerite. This matrix presents the known "schalenblende". It is formed by compact sphalerite and wurtzite masses of a pale brown colour, occurring in concentric layers with reniform surfaces which also may contain pyrite and galena. It is believed to have formed by crystallization of a rich-sulfide colloidal dispersion. Good size and aesthetic specimen.


Size: 10,0 x 6,4 x 4,0 cm.
Main crystal: 3 x 3 mm.
Found in 2010.

Precio reducido-Reduced price 65€
 

RM532   Twinned calcite

Montorgueil (Leffe) Quarry, Leffe, Dinant, Namur, Belgium

Almost floating calcite crystal, with yellowish color, transparent and very rich in faces. We can observe the complex twinning formed by rhombohedral crystals. This limestone quarry has provided beautiful calcite twins which have made enjoy during years the crystallography mineral collectors. Currently access is not allowed.


Size: 5,0 x 4,2 x 3,2 cm.
Found in 2011.

Precio reducido-Reduced price 40€
 
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