Caryopilite

Formula:  (Mn,Mg)3Si2O5(OH)4

Origin of name:  From Greek for nut and felt

 

Crystal system:  Monoclinic

Crystal class:  m

Twinning:

Unit cell: a = 5.67 Ǻ, b = 9.81 Ǻ, c = 7.53 Ǻ, β = 104.5°

 

Colour:  Brown

Diaphaneity:

Luster:

Habit:  Crystals platy in rosettes; massive compact fibrous aggregates

Hardness:  3 to 3.5

Specific gravity:  2.87

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:  Ektropite

 

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