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RM1415   Calcite with dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Cantabria, Spain

Very aerial calcite crystal showing the rhombohedral shape with very curious faces on edges belonging to other orders rhombohedron. Transparent to translucent, colorless and very bright. It is disposed on a matrix with dolomite. Calcite specimens from la Florida mines are known and valued worldwide. An aesthetic specimen from the Spanish mineralogy.


Size: 8.8 x 4.3 x 4.0 cm.
Main crystal: 33 x 28 mm.

 

RM1185   Sphalerite, Galena and Dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Cantabria, Spain

Nice specimen formed by several brilliant crystals of sphalerite, with toasted honey color, accompanied by snow-white dolomite crystals and octahedral galena. It comes from a Spanish locality where it is difficult find these species combination.


Size: 7.2 x 5.6 x 3.5 cm.

 

RM365   Calcite with Dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Cantabria, Spain

In this sample we have a complex twinned escalenohedron group, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined faces and delicate edges.
These specimens appeared accompanied by pink dolomite, at level 6 of this mine. An excellent miniature from this classic Spanish locality. Calcite specimens from la Florida mines are known and valued worldwide.


Size: 5,4 x 4,0 x 3,8 cm.
Main crystal: 47 x 17 mm.

 

RM557   Twinned Calcite with dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Cantabria, Spain

Calcite specimens from la Florida mines are known and valued worldwide. In this sample we have a complex twinned escalenohedron, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined striated faces and delicate edges. It has a delicate yellow color.
These
specimens appeared accompanied by dolomite, at level 6 of this mine. A huge size and excellent specimen from this classic Spanish locality.

 


Size: 10,7 x 7,4 x 4,6 cm.
Main crystal: 6,0 x 3,4 cm.

 

RM468   Calcite with dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Asturias, Spain

Calcite specimens from la Florida mines are known and valued worldwide. In this sample we have a complex twinned escalenohedron, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined striated faces and delicate edges. It has a delicate yellow to orange tone. In this specimen we can see, in the rear, the contact with the dolomite matrix where crystal had growth and an exfoliation, that does not affect the aesthetics of the sample.
These
specimens appeared accompanied by pink dolomite, at level 6 of this mine. On one side there is a hoppered cavity in which it was disposed another group of crystals. A huge size and excellent specimen from this classic Spanish locality.


Size: 8,3 x 5,8 x 4,4 cm.

 
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