These andradite garnets are from the Stanley Butte Area, Stanley Butte, Stanley District, Santa Teresa Mountains, San Carlos Indian Reservation, Graham County, Arizona, USA. This contains three different mineral species but andradite is the only one of collector quality. Andradite is a member of the garnet family of minerals. It commonly contains the minerals Ca, Fe, Si and O. This piece consists of compound clusters of sharp well defined crystals. They have a greenish-yellow color and a light iridescence. This piece measures 2 7/8 x 1 3/8 x 1 1/2 inches or 73 x 35 x 38 mm.