Very rich specimen, covered with sharp xls of Roselite up to 2 mm, deep magenta in colour.
Formula :
Ca2(Co,Mg)[AsO4]2 * 2 H2O
System: monoclinic Hardness:3½ Rarity:not common
Strunz id:VII/C.17-100 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Named in 1824 by Armand Levy in honor of German mineralogist Gustav Rose [March 18, 1798 Berlin, Germany – July 15, 1873 Berlin, Germany], Professor of Mineralogy, University of Berlin.
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 Specimen weight:51 gr.
 Crystal size:Up to 2 mm
 Overall size: 48mm x 32 mm x 31 mm
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