Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Shale from
Sausalito Road Quarry, Sausalito, Marin County, California, USA


Locality type:Quarry
Classification
Type:Shale
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Shale data
Locality Data:Click here to view Sausalito Road Quarry, Sausalito, Marin County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1643310
Long-form Identifier:1:3:1643310:2
GUID (UUID V4):0
Nearest other occurrences of Shale
0.8km (0.5 miles) ⓘBunker Road tunnel (Unspecified road tunnel), Fort Barry, Marin County, California, USA
10.9km (6.7 miles) ⓘRed Rock Island deposit, Richmond, Contra Costa County, California, USA
17.5km (10.9 miles) ⓘMcKinnan Gulch prospect, Bolinas Ridge, Stinson Beach, Marin County, California, USA
27.5km (17.1 miles) ⓘLeona Mine (Leona Heights Mine), Leona Heights deposit, Leona Heights, Oakland, Oakland Hills (San Leandro Hills), Alameda County, California, USA
34.2km (21.2 miles) ⓘPort Costa Shale Quarries, Port Costa, Contra Costa County, California, USA
40.8km (25.4 miles) ⓘBrownlie Mine (Brownlie property), Sulfur Springs Mountain, Vallejo, Solano County, California, USA
45.0km (28.0 miles) ⓘGambonini Mine (Turner and Mc Farland Mine; Buena Suerte Mine), M. Gambonini Ranch, Millerton, Marin County, California, USA
56.8km (35.3 miles) ⓘNiles Canyon Road pit (Niles Canyon Quarry), Brightside, Alameda County, California, USA
58.3km (36.2 miles) ⓘUnnamed stone occurrence [4], Sunol, Alameda County, California, USA
75.5km (46.9 miles) ⓘKelly Mine, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
References
Milton, Daniel J., Bastron, Harry (1971) Churchite and Florencite-(Nd) from Sausalito, California. The Mineralogical Record, 2 (4) 166-168
 
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