Aspidolite

Formula: NaMg3AlSi3O10(OH)2

 

Origin of name:

 

Crystal system: Monoclinic

Crystal class: 2/m

Twinning:

Unit cell: 

 

Colour: Light brown

Diaphaneity:

Luster:

Habit:

Hardness:

Specific gravity:

Cleavage: {001} perfect

Tenacity: 

Streak: White

 

Synonyms/varieties: sodiumphlogopite, natriumphlogopite

 

Comments: Member of the mica group. Not IMA approved.

 

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