ELBAITE crystal with a blue INDICOLITE cap. The blue cap is translucent. Luster is vitreous. The crystal is 1.0 inch in length. Albite is the small white spot on the crystal. This specimen is thumbnail size. ELBAITE is a member of the Tourmaline group. INDICOLITE is the blue variety of Elbaite.

Midnight Blue Lapis and Opal from Afghanistan on Sterling Silver Pendant. 

Large Hessonite crystals with adamantine luster. Color is reddish-orange to brown. Largest Hessonite crystal is 4-cm long. Another is 2.7-cm. Minor Vesuvianite (green) in matrix.