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RM1443   Actinolite (byssolite) with quartz and albite

Druntobel, Kreuzli pass, Sedrun, Tujetsch, Grischun, Switzerland

From a locality not well represented in collections, we can enjoy this specimen formed by several fibrous aggregates of actinolite (byssolite), brilliant and with a greenish color. Disposed on a matrix with quartz and albite.


Size: 7.4 x 4.0 x 2.5 cm.

Price: 45 €Buy
 

RM1645   Piemontite & Braunite

Tinizong, Oberhalbstein, Albula, Grisons, Switzerland

Piemontite specimens from this Swiss area are uncommon. We can see groups of prismatic radiated deep red piemontite crystals embeded and contrasting with the white quartz matrix. Accompanied by black layers of braunite. Piemontite has been analyzed (ARM1581) and we will send results to the buyer.


Size: 7.0 x 5.5 x 3.6 cm.

Analyzed specimen with report
 

RM1649   Piemontite & Braunite

Tinizong, Oberhalbstein, Albula, Grisons, Switzerland

Piemontite specimens from this Swiss area are uncommon. We can see groups of prismatic radiated deep red piemontite crystals embeded and contrasting with the white quartz matrix. Accompanied by black layers of braunite. Piemontite has been analyzed (ARM1581) and we will send results to the buyer.


Size: 4.0 x 2.4 x 1.0 cm.

 

RM1713   Adularia (K Feldspar variety)

Val Giuv, Tavetsch, Vorderrheintal, Grisons, Switzerland

A glassy, translucent to transparent, very sharp, colorless adularia interpenetrated crystals from this classic Swiss locality. Green chlorite has nicely dusted and accented this excellent piece, which is complete all-around and is essentially pristine, except for contacting at the base. An old specimen.
Val Giuv is very rich in Alpine-type fissures, in particular, the Giuv syenite. Pockets are unevenly distributed and are concentrated along the southern boundary of the Giuv syenite rock body. Alpine-type fissures also occur in the aplite dikes but differ slightly in their paragenesis (beryllium minerals like milarite only occur in and around aplites).


Size: 6.5 x 6 x 5.5 cm.
Found in 1970's

Ex. L. Daunis (Barcelona)


 

RM1469   Tremolite in dolomite

Campolungo, Val Piumogna, Leventina, Ticino, Switzerland

Rich group of prismatic elongated tremolite crystals, with defined forms, some doubly terminated, with terminal faces. They are disposed in a dolomite saccharoid matrix. A really fine specimen, good size and from the type locality. From the Ruilbeurs collection. Unusual in the market.


Size: 12.0 x 8.4 x 4.5 cm.
Main crystal: 40 x 7 mm.
Found in 1974.

Localidad tipo / Type locality
Fluorescent under long wave UV


 

RM2034   Smoky quartz with adularia

Galenstock, Tiefenbach, Urseren, Uri, Switzerland

Really good specimen from the high Swiss mountains of the Galenstock area, 3586 m., known for its smoky quartz. This good sized piece shows several of them, with excellent transparence, very uniform smoky tone, with defined faces and edges and partially covered with 'chlorite'. They are accompanied in the matrix with numerous crystals of adularia (variety of feldspar K), well defined. A piece for the display.


Size: 11 x 7 x 6 cm.
Main crystal: 3.3 x 1.5 cm.
Found in 2017.

Price: 180 €Buy
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RM1495   Smoky quartz with hematite and feldspar

Kriegalptal, Binntal, Valais, Switzerland

A very curious piece composed by a group of quartz crystals, one of them of greater size, with a slight smoky tone and an exceptional transparence. Black almost metallic inclusions of hematite are observed in the top faces of the crystal. Also on them. With a minor feldspar matrix. A very aesthetic specimen.


Size: 4.5 x 4.4 x 3.2 cm.
Main crystal: 37 x 14 mm.

 

RM1654   Dufrénoysite

Lengenbach quarry, Imfeld, Binn, Valais, Switzerland

Rich group of needle to fibrous like dufrénoysite crystals, brilliant and disposed in a vug (12x7 mm) in the dolomite matrix. Dufrénoysite is now a member of sartorite group. With the FGL (Forschungsgemeinschaft Lengenbach) label L-10-4404 and from the Type Locality.


Size: 6.5 × 4.5 × 2.5 cm
Found in 2010.

Localidad Tipo - Type Locality


 

RM944   Seligmannite with dufrénoysite

Lengenbach quarry, Imfeld, Binn, Valais, Switzerland

Small group of very brilliant seligmannite crystals, like mirrors, gray to dark brown color. They show well defined faces and edges. Accompanied by needle-like crystals of dufrénoysite, with fibrous appearance and almost black color, interpenetrating with seligmannite. A premium quality specimen for systematic collectors. BOTH SPECIES have the type locality in Lengenbach.
Code: LB 779 (1999)


Size: 5.1 x 3.5 x 3.5 cm.
Main crystal: 3 x 2 mm.
Found in 1999.

 

RM943   Sartorite with realgar

Lengenbach quarry, Imfeld, Binn, Binntal, Valais, Switzerland

A really interesting specimen of this uncommon sulphosalt. It presents elongated crystals, one with terminal faces, metallic luster and it is accompanied by brilliant realgar red crystals, some of them grew on sartorite. On the LGB dolomite matrix with pyrite. From this classic Swiss locality, type locality for the species.
Code: L 23.729 (1992)


Size: 4.3 x 3.0 x 2.8 cm.
Main crystal: 7.5 x 3.5 mm
Found in 1992.

 

RM942   Asbecasite

Wannigletscher, Scherbadung area (Monte Cervandone), Kriegalptal, Binntal, Valais, Switzerland

Find specimens of this rare arsenite-silicate is a hard job. In this specimen we have an aggregate of crystals of asbecasite, with a good orange color, with some visible faces, but fragmented. It is accompanied in the matrix by chlorite, quartz and epidote crystals. A specimen to represent the species in a systematic collection. From the type locality for the species.


Size: 3.8 x 2.8 x 1.6 cm.
Main crystal: 4 x 2 mm. (aggr)

 

RM941   Asbecasite with albite and clinochlore

Wannigletscher, Scherbadung area (Monte Cervandone), Kriegalptal, Binntal, Valais, Switzerland

Isolated crystal of asbecasite showing different faces and quite defined forms for the species. Orange color is evident. It is disposed on a matrix with clinochlore and albite. A difficult species to be found. This specimen is from the type locality.


Size: 6.1 x 4.8 x 1.3 cm.
Main crystal: 3 x 3 mm.

 

RM940   Asbecasite with schorl-dravite and chlorite

Wannigletscher, Scherbadung area (Monte Cervandone), Kriegalptal, Binntal, Valais, Switzerland

Exceptional specimen of asbecasite. Exceptional for the size of the crystals, their color and abundance. They show some defined faces and some of them are partially covered by chlorite and fine needles schorl-dravite. Not easy to find on the market. From the type locality.


Size: 6.5 x 4.8 x 2.6 cm.
Main crystal: 5 x 3 mm.

 

RM754   Siderite with muscovite, calcite and albite

Gerental, Geren, Oberwald, Goms, Valais, Switzerland

We always try to bring pieces from our travels to Switzerland. This curious specimen of siderite from the near Goms area is an example. This is a group of rhombohedral siderite crystals that show a curious and unusual curved parallel growth. They are partially covered by calcite and albite, accompanied by brilliant muscovite. From an unusual Swiss locality.


Size: 7,4 x 4,5 x 4,5 cm.
Found in 2007.

 
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