Cesplumtantite

Formula:  (Cs,Na)2(Pb,Sb)3Ta8O24

Origin of name:  From cesium, lead (plumbium), and tantalum

 

Crystal system:  Tetragonal

Crystal class:  Unknown

Twinning:

Unit cell:

 

Colour:  Colourless

Diaphaneity:  Transparent

Luster:  Adamantine

Habit:  Veinlets of elongate aggregates to 0.3 mm long

Hardness:  6.5

Specific gravity:

Cleavage:  None

Tenacity:

Streak:  White

 

Synonyms/varieties:

 

Comments:

 

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