Wollastonite

Refractive Index : 1.653 – 1.616

Optical Characteristic : DR, Biaxial negative

Specific Gravity : 3.09 – 2.80

Formula : CaSiO3

Crystal System : Triclinic

Variety/Species : All

Species/Group : Wollastonite

Birefringence : 0.015

Dispersion :

Hardness : 4.5 to 5

Toughness : Poor

Ultrasonic : Never

Steam : Never

UV Long : Inert to moderate

UV Short : Inert to moderate

Pleochroism : None

Strength : N/A

Pleochroism Colors : None

Heat : Sensitive

Acids : Sensitive

Light : Stable

Polish Luster : Vitreous to pearly

Fracture : Splintery

Fracture Luster :

Clarity Type : N/A

Tones : N/A

Saturations : N/A

Cause of Color :

Enhancements : None

Cleavage : Perfect in 1 direction

Color Range : White, colorless, gray, green(pale), whitish, grayish, greenish

Transparency : Transparent to Opaque

Phenomena : Chatoyancy

Separations : Wollastonite from-

Identifying Characteristics and information
Can yeild interesting catseye stones.

Spectral Data
Not diagnostic

Trade Names and Misnomers
Ferrowollastonite
Manganowollastonite
Parawolloastonite
Wollastonite

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