Specimen Number14-3-009Alternate NumberSW-6CommentsSample collected by Daven Mashburn. Basal Zone bronzitite cumulate (pyroxenite) within the Norite sequence. Basal Zone norites derived from feeder dikes and then deposited on floor of chamber.In Teaching CollectionNoMineral(s)bronziteplagioclaseRock Namebronzite cumulateDistrictStillwaterMineStillwaterExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypeLayered mafic intrusionGeo-Coords[1] Reference MaterialACL-171: Gold, D.P., and Mueller, P., eds., 1979, Field Trip Guide to the Stillwater Layered Intrusive Complex, Montana; U.S. Nat'l. Comm. Arch. Geochem., 1979 Ann. Field Conf., Y.B.R.A. Camp, Red Lodge, Montana, August 12-18, 1979, 39 p.
ACL-172: Page, N.J., and Nokleberg, W.J., 1974, Geologic Map of the Stillwater Complex, Montana; Misc. Invest. Ser. Map I-797, Reston, VA.
ACL-225: Howland, A.L., 1955, Chromite Deposits in Central Part Stillwater Complex, Sweet Grass County, Montana; U.S. Geol. Surv. Bull. 1015-D, Washington, D.C., 26 p.
ACL-230: Mertie, J.B., 1969, Economic Geology of the Platinum Metals; U.S. Geol. Surv. Bull. 630, Washington, D.C., 120 p.
14-3-009: bronzite cumulate - Stillwater District - Stillwater Mine. Franklin College Collections, accessed 07/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/30448