Editing Alabaster (section)

====Black alabaster====
''Black alabaster'' is a rare anhydrite form of the gypsum-based mineral. The black form is found in only three veins in the world, one each in [[United States]], [[Italy]], and [[China]].

[[Alabaster Caverns State Park]], near [[Freedom, Oklahoma]], is home to a natural gypsum cave in which much of the gypsum is in the form of alabaster. There are several types of alabaster found at the site, including pink, white, and the rare black alabaster.