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IV - Oxides
Crystal habit of  Valentinite Valentinite Valentinite

Name   Valentinite
(Antimony Bloom)
Chemistry   Sb2O3
Hardness   2.5 - 3
Lustre   adamantine
Colour   colourless, white, yellow, reddish or grey
Streak   white 
Density [g/cm3]   5.6 - 5.8
Crystal habit   orthorhombic
Cleavage, Fracture   [100] perfect, [010] distinct, fracture uneven
other characteristics and occurrences   valentinite is dimorph with senarmontite (same chemistry, but isometric crystal habit)
oxidation product of stibnite (Sb2S3)

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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