Roblar Leucogranite
Field Collector: Esper Signius Larsen Jr.
Place Collected:At the fork of Deluz and Roblar Creek, closest town is Deluz, San Luis Rey Quadrangle, Southern California
Object number: ROC21688
DescriptionLight brownish-pink meium-grained (1-5 mm) plutonic igneous rock. Visually estimated mineral modes are 35% light grey quartz, 35% light pink-brown K-feldpsar, 25% grey-white plagioclase, and 5% black biotite. All grains are roughtly 1-3 mm in size.