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RM3077   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 5.5 x 5.2 x 3.5 cm.
Found in ±1997.

Classic locality


 

RM3076   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 4.8 x 4.5 x 2.3 cm.
Found in ±1997.

Classic locality


 

RM3075   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 6.7 x 5.7 x 2.5 cm.
Found in ±1997.

Classic locality


 

RM3074   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 6.4 x 4.8 x 3.7 cm.
Found in ±1997.

Classic locality


 

RM3073   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 4.2 x 3.8 x 3.2 cm.
Found in ±1997.

Classic locality


 

RM3072   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 3.8 x 3.5 x 2 cm.
Found in ±1997.

Classic locality


 

RM3071   Dadsonite, boulangerite and siderite

Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Dadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.


Size: 5.8 x 4.2 x 3.1 cm.
Found in ±1997.

Classic locality


 

RM2847   "Window" quratz

Allos Pass, Uvernet-Fours, Barcelonnette, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France

Quartz specimen with marked "window" growths with inclusions. These Allos pass crystals are not very common on the market. Allos pass is situated on the edge of Mercantour National Park approximately 20 km from the small village of Barcelonnette.


Size: 8.5 x 6.3 x 3 cm.

Price: 65 €Buy
 

RM578   Zinkenite with siderite and chalcocite

Vallée de l'Ubaye, Saint-Pons, Barcelonnette, Alpes-de-Haute-Provence, France

Excellent and rich group of prismatic zinkenite crystals, some of them with a good size, with striated faces, with a huge size chalcocite crystal with planar to curved terminal faces. Good metallic luster and well disposed on a vug with lenticular siderite crystals. Usually they occurs covered by calcite. A hig quality specimen from this species and locality.


Size: 5,7 x 5,2 x 4,0 cm.
Main crystal: 9 x 4 mm.

 
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