Mineral - Badalovite
Badalovite
Chemical Properties
Mineral Class
Arsenates
Toxicity
middle
Formula
Na₂Mg₂Fe(AsO₄)₃
Unit Cell
a=11.90 b=12.78 c=6.66 β=113° Z=4
Physical Properties
Hardness
3.5
Streak
whitegreengreen white
Density
Heavy (3,5-6)
Cleavage
Fracture
uneven
Tenacity
Brittle
Optical Properties
Color
brownyellowgreen
Birefringence
0.005
Luster
Vitreous
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
monoclinic-prismatic - 2/m
Space Group
C2/c (15)
Habit
sheaf-shaped, prismatic
Formation
Volcanic, in fumaroles
Paragenesis
Twinning
Rarity
Rare
Synonyms
Badalovite
Composition
Elements
Mass
Na₂O
9.23
K₂O
0.19
CaO
2.04
MgO
13.78
MnO
0.31
CuO
0.12
ZnO
0.24
Al₂O₃
0.06
Fe₂O₃
12.77
TiO₂
0.01
SiO₂
0.06
P₂O₅
0.33
V₂O₅
0.05
As₂O₅
61.51
SO₃
0.02
Russia (Pekov et al. 2020)
Groups and Members
Alluaudite-Supergroup
Alluaudite-Group
Name and first discovery: Named after the Turkmen mineralogist Stepan Tigranovich Badalov (1919 - 2014). First described in 2020.
Chemism:
Synonyms:
Varieties:
Abbreviation: Bdl
Famous locations
(TL) Type locality (analysis) Chemical element distribution, see above
Russia
(TL) (Analysis) Tolbachik Volcanic field, Milkovsky, Kamchatka Krai, Russia
Literature
Pekov, I. V., Zubkova, N. V., Yapaskurt, V. O., Belakovskiy, D. I., Vigasina, M. F., Sidorov, E. G., & Pushcharovsky, D. Y. (2015). New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. III. popovites, Cu5O2 (AsO4) 2. MineralogicalMagazine, 79(1), 133-143.