Creedite
Creedite is a calcium aluminium sulfate fluoro hydroxide mineral. It forms in colorless to white to purple monoclinic prismatic crystals often occurring as acicular radiating sprays of fine prisms.
Creedite is a calcium aluminium sulfate fluoro hydroxide mineral. It forms in colorless to white to purple monoclinic prismatic crystals often occurring as acicular radiating sprays of fine prisms.