Sarkinite

Wagnerite Group.

History

Activities related to discovery and approval of the group members

Structural context

Sarkinite
Crystal System monoclinicCrystal Class prismaticSpace Group P2/m
a12.751—12.779 (12.765)
b13.577—13.596 (13.5865)
c10.189—10.208 (10.1985)
alpha90
beta108.857—108.88 (108.8685)
gamma90
volume1669.25—1678.15 (1673.7)

Based on 2 measurements

Chemical context

Stoichiometric formulas

Sarkinite
mindat.org
  • March 13, 2023Mn2+2(AsO4)(OH)
IMA
  • March 13, 2023Mn2+2(AsO4)(OH)
mineralogy.rocks
  • Aug. 30, 2022Mn2+2As5+O4(OH)

Elements recorded on EPMA

1
As
1
H
1
Mn
1
O

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • rose-red
  • reddish-yellow
  • pinkish
  • light rose
Color noteOriginal color note from the source
Red, rose-red, reddish-yellow, yellow, pinkish; light rose or yellow in transmitted light.
StreakStreak entities, recognized using a custom trained NER model
      Streak noteOriginal streak note from the source
      Red to yellow
      Lustre
      Greasy
      Fracture
      Irregular/Uneven
      Conchoidal
      Hardness
      4—5
      Measured density
      4.08—4.18
      Calculated density
      4.04