Selenite (mineral) was filled with mineral-rich water that drove the crystals' growth. The largest of those crystals weighs 55 tons, is long, and is over 500,000 years old. Gypsum occurs on every continent and is the most common of all the sulfate minerals. Gypsum is formed as an evaporative mineral, frequently found in alkaline lake muds, clay beds, evaporated seas, salt flats, salt springs, and caves. It is frequently found in conjunction with other minerals such as, copper ores, sulfur and sulfides, silver, iron ores, coal, calcite, dolomite, limestone, and opal. Gypsum has been dated to almost every geologic age since the
Stafford Mineral Springs Stafford Mineral Springs The Stafford Mineral Springs and Stafford's Wells Hotel are the site of a historic mineral springs hotel resort property in Montgomery County, Mississippi. The property was built in 1890 by Dr. Thomas Washborn and was visited for its supposed curative properties. The property was then developed by Edward Stafford and his partners, who formed Stafford Mineral Springs Company, Limited, and incorporated in Louisiana on May 19, 1892. Prior to 1916 it had well houses, bath houses, guest cottages, a dance pavilion, and gambling hall. Later the Stafford Springs Motor Lodge was developed in the area. The springs