Creedite was named after the town Creed Quadrangle, where it was first found in 1916. Needle-shaped creedite crystals usually form druses. Creedite is a complex calcium-aluminum fluoride. The mineral can be colored in lavender, pinkish, ochreous, or reddish. The colorless crystals occur as well. The luster is vitreous or dull. The gem has a hardness […]
