set yourself apart with colour
SJ Gems declare any enhancements to the best of their ability. Authenticity is guaranteed by full refund.
All deliveries are fully insured. Convenient and secure online payment through 100% secure checkout
Easily exchange or return items. Return any purchase in its original condition. No questions asked.
Hardness – 6 to 7 on Mohs scale
Toughness – Fair to poor, due to cleavage and sensitivity to thermal shock
Heat – Sudden temperature change can cause cracking
Light – Stable
Chemicals – Attacked by hydrochloric and hydrofluoric acid
Steam – Never
Ultrasonic – Never
Warm, soapy water – Safe
Heating – produces tanzanite colour from transparent, brownish material → stabile → assumed