Lisetite

Formula:  Na₂CaAl₄Si₄O₁₆

Origin of name:  From locality; Liset eclogite pod, Norway

Crystal system:  Orthorhombic

Crystal class:  mm2

Twinning: 

Unit cell: 

Colour:  Colourless

Diaphaneity:  Transparent

Luster: 

Habit:  Grains to 100 µm in clusters

Hardness: 

Specific gravity:  2.73

Cleavage:  None

Tenacity: 

Streak: 

Synonyms/varieties:

Comments:  Described from thin section