Kermesite

Crusts and coatings may be confused with metastibnite.

History

Activities related to discovery and approval of the group members

Structural context

Kermesite
Crystal System triclinicCrystal Class pinacoidalSpace Group P-1
a8.125—20.971 (12.4143)
b8.16—10.709 (9.8463)
c5.772—20.378 (10.645)
alpha90—102.8 (98.5267)
beta101.5—110.63 (107.5833)
gamma90—101 (97.3067)
volume436.65—3417.15 (1431.343)

Based on 3 measurements

Chemical context

Stoichiometric formulas

Kermesite
mindat.org
  • March 13, 2023Sb2S2O
IMA
  • March 13, 2023Sb2OS2
mineralogy.rocks
  • Aug. 30, 2022Sb2OS2

Elements recorded on EPMA

3
O
3
S
3
Sb

Physical properties

ColorColor entities, recognized using a custom trained NER model
    Color noteOriginal color note from the source
    Red
    StreakStreak entities, recognized using a custom trained NER model
    • brownish red
    Streak noteOriginal streak note from the source
    Brownish red
    Lustre
    Adamantine
    Transparency
    Translucent
    Opaque
    Hardness
    1—1.5
    Measured density
    4.5—4.6
    Calculated density
    4.85