Formula: Pb6As2O7Cl4
Origin of name: From Greek for sun and leaf
Crystal system: Orthorhombic
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Yellow to greenish yellow
Diaphaneity: Translucent
Luster: Vitreous to greasy
Habit: Crystals acute pyramidal, inclined faces striated horizontally, or tabular; massive, coarsely foliated or granular
Hardness: ~ 2
Specific gravity: 6.89
Cleavage: 1; {011} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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