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- Museum number:
- 1-239129
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Sac-113 (Calquhoun Mound 1), Sacramento County, California
- Museum number:
- 1-239126
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Sac-113 (Calquhoun Mound 1), Sacramento County, California
- Museum number:
- 1-239118
- Object class:
- Mineral and rock samples
- Dimensions:
- length 1.8 centimeters
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Sac-113 (Calquhoun Mound 1), Sacramento County, California
- Museum number:
- 1-196823
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-7, Karlo area, Lassen County
- Collection date:
- 1955
- Museum number:
- 1-239131
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Harry Starr Riddell Jr.
- Collection place:
- CA-Sac-113 (Calquhoun Mound 1), Sacramento County, California
- Museum number:
- 1-108269
- Object class:
- Mineral and rock samples
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 12, 1949
- Museum number:
- 1-102347
- Object class:
- Mineral and rock samples
- Collector:
- Albert Mohr, David Allen Fredrickson, Francis A. Riddell, and William Harland Kinsey
- Collection place:
- CA-Sta-5, Stanislaus County, California
- Collection date:
- March 1949
- Museum number:
- 1-197358
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell
- Collection place:
- CA-Las-126, Eagle Lake, Lassen County
- Collection date:
- 1956
- Museum number:
- 1-108370
- Object class:
- Mineral and rock samples
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 12, 1949
- Museum number:
- 1-108274
- Object class:
- Mineral and rock samples
- Collector:
- Arnold R. Pilling, Francis A. Riddell, and Franklin Fenenga
- Collection place:
- CA-Son-299, Bodega Harbor, Sonoma County
- Collection date:
- July 12, 1949