Specimen Number14-3-015Alternate NumberSW-9CommentsSample collected by Daven Mashburn. Bronzitite from Bronzitite member of Ultramafic Zone. Mostly cumulate bronzite and olivine with minor intercumulate plagioclase. Bronzite crystals have visible olivine inclusions forming the poikilitic texture. Augite common here, never found in Peridotite member.In Teaching CollectionNoMineral(s)bronziteolivineRock NamebronzititeDistrictStillwaterMineStillwaterExternal 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.
14-3-015: bronzitite - Stillwater District - Stillwater Mine. Franklin College Collections, accessed 14/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/30454