Archive for the Spodumene Category

Triphane

Refractive Index : 1.676 – 1.660 + 0.005 – 0.005

Optical Characteristic : DR B+

Specific Gravity : 3.18 + 0.03 – 0.03

Formula : LiAISi2O6

Crystal System : Monoclinic

Variety/Species : Spodumene

Species/Group : Pyroxene group

Birefringence : 0.014 to0.016

Dispersion : 0.017

Hardness : 6.5 to 7

Toughness : Poor

Ultrasonic : Never

Steam : Never

UV Long : Inert to moderate

UV Short : Inert to [...]