Lizardite

lizardite

phyllosilicate

serpentine

chrysotile

Images

Formula: Mg₃Si₂O₅(OH)₄
Phyllosilicate (sheet silicate), serpentine subgroup
Crystal System: Trigonal
Specific gravity: 2.55 measured, 2.57 calculated
Hardness: 2½
Streak: White
Colour: Green, green blue, yellow, white.
Environment

Metamorphic environments

Lizardite is formed by the alteration of magnesium silicates below 75^oC.

Alteration

See results for serpentine, which is a group of minerals including serpentine, chrysotile and lizardite, all of which share the same formula, although they have slightly different structures.

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