Francoanellite

Formula:  H6(K,Na)3(Al,Fe)5(PO4)8 . 13H2O

Origin of name:  For Franco Anelli, Italian geologist

 

Crystal system:  Hexagonal

Crystal class:  -3 2/m

Twinning:

Unit cell:

 

Colour:  Yellowish white

Diaphaneity:

Luster:

Habit:  Massive, earthy; nodular aggregates, microscopic

Hardness:  1

Specific gravity:  2.26

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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