. "Hornblende-gabbro - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene <10% and hornblende 5 - 90% of plagioclase + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14."@en . "stable"@en . . . "Hornblende-gabbro"@en . "Hornblende-gabbro"@en . . . "HBGB"@en . .