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RM2455   Balangeroite

Poggio San Vittore mine, Balangero, Torino, Piemonte, Italy

Really fine specimen for this rare species. The balangeroite is a magnesium, iron anfd manganese silicate, only found in a few places worldwide. The serpentine Poggio San Vittore quarry, which were the best samples has been found and it is the type locality for the species, is abandoned since 1990. The mineral usually appears included in the serpentine matrix and only few fibers are aerial. In this specimen, fibers are totally aerial and with a good length.


Size: 4.2 x 4 x 3.4 cm.
Main crystal: 3.2 cm.
Found in ca. 1985.

Col. J. Astor (Barcelona).
Type Locality


 

RM1913   Glaucophane with rutile, pyrite and muscovite

Oremo river, Chiavolino, Pollone, Biella, Piemonte, Italy

Glaucophane is an unusual species member of the amphibol group. This Italian locality is known worldwide for the good specimens of this species. It is usually covered with calcite, which once removed shows sculptural aggregates of striated tabular to prismatic translucent crystals, with an intense bluish-gray color, almost violet. In the cavities appear small orange crystals of rutile and groups of chromian muscovite (var. fuchsite). Pyrite crystals also can be found. A good sized and very aesthetic combination from this classic locality.


Size: 8 x 6.5 x 4.5 cm.
Main crystal: 14 mm.

 

RM1912   Glaucophane with rutile and muscovite

Oremo river, Chiavolino, Pollone, Biella, Piemonte, Italy

Glaucophane is an unusual species member of the amphibol group. This Italian locality is known worldwide for the good specimens of this species. It is usually covered with calcite, which once removed shows sculptural aggregates of striated tabular to prismatic translucent crystals, with an intense bluish-gray color, almost violet. In the cavities appear small orange crystals of rutile and groups of chromian muscovite (var. fuchsite). Pyrite crystals also can be found. A good sized and very aesthetic combination from this classic locality.


Size: 7.3 x 6.5 x 4.2 cm.
Main crystal: 23 mm.

 

RM1910   Glaucophane with rutile

Oremo river, Chiavolino, Pollone, Biella, Piemonte, Italy

Glaucophane is an unusual species member of the amphibol group. This Italian locality is known worldwide for the good specimens of this species. It is usually covered with calcite, which once removed shows sculptural aggregates of striated tabular to prismatic translucent crystals, with an intense bluish-gray color, almost violet. In the cavities appear small orange crystals of rutile and groups of chromian muscovite (var. fuchsite). Pyrite crystals also can be found. A good sized and very aesthetic combination from this classic locality.


Size: 7 x 6.4 x 5.4 cm.
Main crystal: 18 mm.

 

RM1364   Balangeroite

Poggio San Vittore mine, Balangero, Torino, Piemonte, Italy

Really fine specimen, with good size, for this rare species. The balangeroite is a magnesium, iron anfd manganese silicate, only found in a few places worldwide. The serpentine Poggio San Vittore quarry, which were the best samples has been found and it is the type locality for the species, is abandoned since 1990.
The mineral usually appears included in the serpentine matrix and only few fibers are aerial. In this specimen, fibers are totally aerial and with an unusual length. A definitive piece, from the TL for selected displays.


Size: 12.4 x 6.0 x 5.5 cm.
Main crystal: 95 mm. fibr.

 

RM1365   Balangeroite

Poggio San Vittore mine, Balangero, Torino, Piemonte, Italy

Really fine specimen, with good size, for this rare species. The balangeroite is a magnesium, iron anfd manganese silicate, only found in a few places worldwide. The serpentine Poggio San Vittore quarry, which were the best samples has been found and it is the type locality for the species, is abandoned since 1990.
The mineral usually appears included in the serpentine matrix and only few fibers are aerial. In this specimen, fibers are totally aerial and with an unusual length. A definitive piece, from the TL for selected displays.


Size: 13.5 x 9.0 x 3.5 cm.
Main crystal: 90 mm fibr.

 
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