Formula: Ca2Mg11(CO3)13-x(HCO3)x(OH)x.(10-x)H2O
Origin of name: for Evgeneii Sergeev, Russian geologist
Crystal system: hexagonal
Crystal class: unknown
Twinning:
Unit cell:
Colour: white
Diaphaneity:
Luster: dull
Habit: fine-grained aggregates
Hardness: 3.5
Specific gravity: 2.64
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
| Back to Alphabetical list | Colour photos | Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |