Zakharovite

Formula: Na₄Mn₅Si₁₀O₂₄(OH)₆^.H₂O

Origin of name: for E.E Zakharov, Russian geologist

Crystal system: Hexagonal

Crystal class: 3m

Twinning:

Unit cell: a = 14.58, c = 37.71

Colour: Yellowish to bright yellow

Diaphaneity:

Luster: Pearly to dull waxy, earthy

Habit: Platy aggregates

Hardness: 2

Specific gravity: 2.58 to 2.6

Cleavage: 1; {0001} perfect

Tenacity: Conchoidal fracture

Streak: White

Synonyms/varieties:

Comments: