Object class: Mineral and rock samples / Collection place: Contra Costa County, California / Collector: Theodore D. McCown - Hearst Museum Portal Search Results

Start Over Object class Mineral and rock samples Collection place Contra Costa County, California Collector Theodore D. McCown

Hearst Museum object titled Asphaltum, accession number 1-51407, described as Chunk

Hearst Museum object titled Crystal, accession number 1-51398, described as Quartz

Hearst Museum object titled Rock, accession number 1-51416, described as rock: Actinolite