Red jasper matrix with interescting veins of while quartz. Prominent physcial weathering, brittle areas fall apart to the touch. Several prominent fractures run through the rock, contributing to the weakened structure. Most fresh surfaces are reddish brown while weathered surfaces are brown to orange. (FOV: 0.64mm)
Western Minerals, Inc.
Roadcut on northwest side of Sausalito road east of US 101 and just north of Golden Gate Bridge. It is the first outcrop northeast of the Fort Barry Road
Purchased from Western Minerals, Inc.
Number of Thin Sections