. "Sannaite"@en . "Sannaite - A type of lamprophyre. In the Rock Classification Scheme, it is a lamprophyre in which orthoclase is the dominant feldspar, feldspar dominates over feldspathoids, and the predominant mafic minerals are amphibole, Ti-rich augite, olivine, and biotite. British Geological Survey Research Report RR/99/06, section 6.7 and figs. 31, 32."@en . "SANN"@en . . . "stable"@en . "Sannaite"@en .