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Minerals - Boltwoodite | TerraCollect
Mineral - Boltwoodite
Boltwoodite
(K,Na)(UO₂)(SiO₃OH) · 1,5 H₂O
Chemical Properties
Mineral Class
Silicates
Toxicity
radioactive
Formula
(K,Na)(UO₂)(SiO₃OH) · 1,5 H₂O
Unit Cell
Physical Properties
Hardness
3.5 - 4
Streak
white
Density
Heavy (3,5-6)
Optical Properties
Color
orange
yellow
Birefringence
0.030
Luster
Vitreous,
Pearly,
Waxy
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Groups and Members
Uranophane-Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Fracture
Tenacity
Point Group
monoclinic-sphenoidal - 2
Space Group
P2
1
(4)
Habit
tufty,
acicular,
radial
Formation
Metasomatose, Pegmatite
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Boltwoodite
