Lautarite

Formula:  Ca(IO3)2

Origin of name:  From locality; Oficina Lautaro, Antofagasta Prov., Chile

 

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning: 

Unit cell: 

 

Colour:  Colourless, yellowish

Diaphaneity:  Transparent

Luster: 

Habit:  Crystals short prismatic, striated and rounded on elongation; radial aggregates

Hardness:  3.5 to 4

Specific gravity:  4.52

Cleavage:  3; {011} good, {100} and {110} trace

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