Rosell Minerales
RM3030 Piemontite
Jakobsberg Mine, Jakobsberg ore field, Nordmark, Värmland, SwedenOld specimen of piemontite from this Swedish classic locality, little represented in collections. They are small burgundy red crystals on a matrix with calcite (fluorescent under SW.-UV). It is accompanied by a label of Lazard Cahn (1865-1940), a renowned American mineralogist about whom you can see more information at this link: Memorial of Lazard Cahn, Amer. Mineralogist Vol. 26, pages 174-177, 1941.
Size: 6.5 x 3.8 x 3.4 cm.
Found in ±1930.
Col. Lazard Cahn (USA) old label 1931.

RM2460 Gedrite
Skisshyttan, Smedjebacken, Dalarna Co., SwedenRadiating crystals of gedrite, almost black, included in a metamorphic rock matrix.
Size: 4.7 x 4.1 x 3 cm.
Main crystal: 1.2 cm.
RM1625 Cobaltite
Håkansboda, Lindesberg, Västmanland, SwedenThis is a brilliant and esthetic cobaltite specimen that shows a sharp and brilliant crystal, with dominant forms of the cube and pyritohedron, included in the massive pyrrhotite matrix. Håkansboda is an old mine, opened in the 17th century and worked until 1873, with only minor mining during World War I. An European classic mine and specimen.
Size: 6.4 x 4.9 x 4.5 cm.
Main crystal: 8 x 7 mm.
Found in 1980's.
Excol. Lluís Daunis & Maria Ruscalleda (Barcelona).
Classic locality
RM1547 Hisingerite
Brunnsjögruvan, Grythyttan, Hällefors, Västmanland, SwedenHisingerite is a rare hydrated iron hydroxylsilicate and its type locality is Riddarhyttan (Sweden), near from this specimen locality we offer. This sample shows radial laminar aggregates with an intense dark brown to almost black color, with metallic luster. Specimens of hisingerite are very rare and this piece is from the collection of Renaud Vochten (1933-2012), a well-known Belgian collector of mineralogical rarities. This specimen was adquired by Mr. Vochten in 1975 to V. H. Sørensen.
Size: 7.2 x 6.5 x 3.8 cm.
Found in ca. 1975.

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