Dakota Matrix Minerals
Origin: Palabora Mine, Loolekop, Limpopo Province, South Africa
Sample size: 8 x 3.8 x 1.1 cm
Origin: Cedar Hill Quarry, Lancaster County, Pennsylvania, U.S.A.
Sample size: 6.7 x 4.7 x 3.4 cm
Colourless prismatic and tabular crystals of brucite
Origin: Val di Serra quarry, Rovereto, Trento Province, Trentino-Alto Adige,
Italy
Picture size: 5 mm
Owner: Thomas Witzke
Dark grains in marble matrix and as white veins in magnetite-vein crosscutting
the marble
Origin: Mine near Cortijo de la Fuenfira, between Cascajares and Cerro Abanto,
Sierra Bermeja, South of Ronda, Spain
Sample size: 5 x 7.5 cm
1 cm sized translucent thin bladed brucite crystals in matrix
Origin: Tallgruvan, Norberg, Västmannland, Sweden
Sample size: 9 x 12 cm
Origin: Asbest, Ural, Russia
Sample size: 2 x 3 cm
Aggregates of tabular often transparant brucite crystals on matrix
Origin: Winklarn, Oberviechtach, Bavaria, Germany
Sample size: 2.5 x 3.5 cm
Origin: Borek u Chotebore, Czech Republic
Sample size: 3.5 x 4 cm