Amblygonite - LiAl(PO₄)(F,OH)

Habit: Milk white, pale yellow, beige, salmon pink, pale green, pale blue or gray; may be colorless. Crude crystals, typically equant with complex form development; massive. Vitreous to greasy luster; transparent to translucent. White streak.

Environment: An uncommon accessory mineral in zoned lithium-bearing granitic pegmatites; associated with spodumene, lithiophilite-triphyllite, apatite-group minerals, lepidolite, petalite, pollucite and tourmaline-group minerals.

Etymology: From the Greek words for "blunt" and "angle," for its approximately 90-degree cleavage angle.