Lot of 5 tumbled natural Iolite Cordierite “water sapphire” stone from India

Lot of 5 tumbled Iolite - "water sapphire" crystals (gem variety of the mineral Cordierite) from India. Strongly pleochroic iolite can display a blue to violet hue in one direction and pale yellow to colorless in another.
The color is fully natural
These stones are perfect for crafting, collecting, metaphysical use, or jewelry making.
Location: South India
Size: up to 1.7 Centimeters
Weigh: each lot is 18 Grams