Ilha da Trindade
An island located in the southern Atlantic Ocean and administered by Brazil.
Greenwood (1998) report unusually Ba- and Ti-rich dark reddish-brown phlogopite-biotite rims around paler phlogopite cores in a lamprophyric dyke.
Ref.:
Greenwood, J.C. (1998) Barian-titanian micas from Ilha da Trindade, South Atlantic. Mineralogical Magazine: 62: 687-695.
Mineral List
12 entries listed. 8 valid minerals.
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