Ulexite

Refractive Index : 1.65 – 1.519

Optical Characteristic : DR, Biaxial -

Specific Gravity : 1.95-1.65

Formula : NaCaB5O6(OH)6.5(H2O)

Crystal System : Triclinic

Variety/Species : All

Species/Group : Ulexite

Birefringence : 0.023

Dispersion : N/A

Hardness : 1 to 2.5

Toughness : Poor

Ultrasonic : Never

Steam : Never

UV Long : Inert

UV Short : Inert to moderate

Pleochroism : None

Strength : N/A

Pleochroism Colors : None

Heat : Sensitive

Acids : Sensitive

Light : Stable

Polish Luster : Vitreous

Fracture :

Fracture Luster :

Clarity Type : N/A

Tones : N/A

Saturations : N/A

Cause of Color :

Enhancements : None

Cleavage : Perfect 1 direction

Color Range : Colorless, white

Transparency : Translucent

Phenomena : Chatoyancy

Separations : Ulexite from-

Identifying Characteristics and information
Sometime called TV stone

Spectral Data
Not diagnostic

Trade Names and Misnomers
Television Stone
TV stone
Ulexite

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