Nanlingite

Formula: CaMg4(AsO3)2F4

Origin of name: after locality Nan Ling, China

 

Crystal system: hexagonal

Crystal class: 3m or -3 2/m

Twinning: 

Unit cell: 

 

Colour: reddish brown, dark brown on oxidised surfaces

Diaphaneity: 

Luster: vitreous

Habit: crystals subhedral to euhedral, 0.1 to 2 mm, dendritic aggregates

Hardness: about 2.5

Specific gravity: 3.93

Cleavage: none

Tenacity: 

Streak: pale yellow

 

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