Spurrite

Refractive Index : 1.679 – 1.640

Optical Characteristic : DR, B-

Specific Gravity : 3.00

Formula : Ca5(SiO4)2(CO3)

Crystal System : Monoclinic

Variety/Species : All

Species/Group : spurrite

Birefringence : 0.039

Dispersion :

Hardness : 5

Toughness : poor

Ultrasonic : Never

Steam : Never

UV Long : Inert

UV Short : Inert

Pleochroism : None

Strength : N/A

Pleochroism Colors : None

Heat : sensitive

Acids : sensitive

Light : stable

Polish Luster : vitreous

Fracture : conchoidal

Fracture Luster :

Clarity Type : N/A

Tones : N/A

Saturations : N/A

Cause of Color :

Enhancements : none

Cleavage : distinct 1 direction.

Color Range : Gray, lavender gray, purple grayish, purplish

Transparency : translucent to opaque

Phenomena : None

Separations : Spurrite from-

Identifying Characteristics and information
Rare.

Spectral Data
not diagnostic

Trade Names and Misnomers
Spurrite

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