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RM543   Fluorite with Quartz

Berta quarry, El Papiol - Sant Cugat del Vallès, Barcelona, Catalunya, Spain

A classic between classics of our country. This is a druse of fluorite crystals those, at first glance, seem just octahedra, but if you take a look carefully you will see vertices truncated by cube. Some crystals show parallel growth and other are interpenetrated. Good transparence and exceptional green color. Acompanied by small quartz crystals.
This specimen belongs to the "old" fluorites from Berta quarry, from an area of ​​sericitized granodiorite. In the fractures, if it was enough space, they grew lining the walls. When quarry worked lower levels fluorite appeared in fresh granite matrix, but mostly without this depth of color. A great specimen.


Size: 7,5 x 5,6 x 3,4 cm.
Main crystal: 9 x 9 mm.
Found in 1980's.

Fluorescent under LW-UV and SW-UV lights
 
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