Tumbled White Howlite / 20-40mm AVG - 1 KILO LOT

Quantity: 1 kilogram

Average size range: 20 to 40 millimeters

Howlite is an uncommon boron-based mineral, and is normally white or colorless with thin black veins. It was first discovered by and named for Canadian chemist and geologist Henry How in 1868, who found it while investigating a gypsum quarry.