API Clay Mineral Standards

Allophane

    Maid of Sunshine Mine, near Gleeson, Chochise County, Arizona. Data File: .txt 

Attapulgite

    H-43 Gadsen County, Florida. Data File: .txt

    H-46-1 Quincy, Florida. Data File: .txt

Dickite

    H-16 St. George, Utah. Data File: .txt

    H-14 Ouray, Colorado. Data File: .txt

    H-14-3 Red Mountain, Colorado. Data File: .txt

Halloysite

    H-12 North Gardner Mine, Huron (Bedford), Indiana. Data File: .txt

    H-13 Eureka, Utah. Data File: .txt

Illite

    H-36 Morris, Illinois. Data File: .txt       

Kaolinite

    H-1 Murfreesboro, Arkansas. Data File: .txt

    H-5 Bath, South Carolina. Data File: .txt

    H-9 Mesa Alta, New Mexico. Data File: .txt

    Twiggs County, Georgia. Data File: .txt

    114-A St. Austell, Cornwall, Britain. Data File: .txt

    +Cristobalite

        49E1435 Top Rock, Arizona. Data File: .txt

Montmorillonite

    H-31 Cameron, Arizona. Data File: .txt

    H-28 Little Rock, Arkansas. Data File: .txt

    H-32 Gouge Clay, Pioche, Nevada. Data File: .txt

    49E2603 near Sanders, Apache County, Arizona. Data File: .txt

    var. Bentonite

        H-26 Clay Spur, Wyoming. Data File: .txt

        H-19 Polksville, Mississippi. Data File: .txt

        H-24 Otay, California. Data File: .txt

        H-25 Upton, Wyoming. Data File: .txt

    var. Metabentonite

        H-41 Tazewell, Virginia. Data File: .txt

        H-42 High Bridge, Kentucky. Data File: .txt

    var. Hectorite

        H-34 Hector, California. Data File: .txt

Nontronite

    H-33a Garfield, near Spokane, Washington. Data File: .txt

    H-33b Manito, near Spokane, Washington. Data File: .txt

    49E5108 Cheney, Washington. Data File: .txt

Pyrophyllite

    H-49 Robbins, North Carolina. Data File: .txt