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Mineralpedia Details for Rossmanite

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Rossmanite

Rossmanite

Named for George R. Rossman of the California Institute of Technology in California, USA for his work on the spectroscopy of tourmaline minerals. This member of the tourmaline group appears as pale pink, prismatic crystals. Notable localities for Rossmannite include in the lepidolite pegmatite at Rozna in Moravia in the Czech Republic, along with elbaite, beryl, topaz, and cassiterite, and can also be found as zones in elbaite from San Piero in Campo on Elba Island in Italy. There are other known localities including in Germany, Sweden, England, the United States, Canada, China, Vietnam, Russia, Tanzania, the Republic of Congo, Nigeria, Namibia, Mozambique, and Madagascar.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

IMA/CNMNC List of Mineral Names (2009) and European Journal of Mineralogy 11 (1999), 215

Formula
[ ](Al2Li)Al6(Si6O18)(BO3)3(OH)4 
Crystal System
Trigonal 
Crystal Habit
Columnar, Crystalline - Coarse, Striated 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
pink, pale pink 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle 
Hardness
WebMineral
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Mindat
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Rossmanite from Rožná dep., Vysočina, Moravia, Czech Republic

Rossmanite
            from Rožná dep., Vysočina, Moravia, Czech Republic

Very rare, pinkish new member of the Tourmaline group (1997). Crystals on this specimen are to 2mm with Elbaite.

Click thumbnail images for larger view.

Rossmanite from Dobrá Voda, Vysočina, Moravia, Czech Republic

Rossmanite
            from Dobrá Voda, Vysočina, Moravia, Czech Republic

Pink prismatic crystals to 1.3cm embedded in matrix.

Click thumbnail images for larger view.

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