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www.mineralgallery.co.za Minerals K-O |
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Labuntsovite |
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Name
Labuntsovite
Chemistry
[(K,Ba,Na)(Ti,Nb)(Si,Al)2(O,OH)7 H2O]
Uses
As a mineral specimen
Color
Orange
Hardness
6
Specific gravity
Crystals
Monoclinic
Accompanied by:
Albite, amphibole group, analcime, biotite, calcite, catapleiite, chlorite group, donnayite, elpidite, eudialyte, fluorite, galena, microcline, natrolite, polylithionite, pyrite, pyroxene group and pyrrhotite.
Fracture
Subconchoidal
Luster
Adamantine to vitreous
Cleavage
Perfect
Streak
White
Similar to:
Nenadkevichite
Labuntsovite was first described and named after the Russian mineralogists Aleksandr Nikolaievich Labuntsov (1884-1963) and his wife, Ekaterina Eutikhieva Labuntsova back in 1955.
It is now designated Labuntsovite-Mn for the Manganese content.
Labuntsovite is in the same group as Nenadkevichite.
It's a complex titanosilicate with nine other metallic cations in its composition.
The crystal habits include singles, radiating clusters of prisms; epitactic overgrowth on elpidite.
