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www.mineralgallery.co.za Minerals A-E |
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Boltwoodite |
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Name
Boltwoodite
Chemistry
K2H2(UO2/SiO4)2.4H2O
Uses
As an ore of uranium and as a specimen
Color
Bright yellow. Yellow to pale yellowish, crystals transparent to translucent
Hardness
3.5-4
Specific gravity
3.6-4.3
Crystals
The crystal system is monoclinic and is found as massive crusts or as acicular crystals.
Accompanied by:
Uranophane,Uranite and other uranium minerals.
Fracture
Uneven
Luster
Vitreous, translucent
Cleavage
Good
Streak
Pale yellow
Similar to:
Boltwoodite is a rare uranium mineral that is highly radioactive.
It has fluoresces and is found at the following locations in Scandinavia Västervik, in fractures or as surfaces on other rocks. Lilljuthatten, Krokom, Jämtland. Olden power plant, Krokom, Jämtland.
Notable occurances outside Scandinavia Rossing Mine, Swakopmund District, Namibia. New Method Mine, San Bernardino County, California, USA.
