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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Glaucophane from
Ward Creek [2], Cazadero, Coast Range, Sonoma County, California, USA


Locality type:Creek
Classification
Species:Glaucophane
Formula:◻Na2(Mg3Al2)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pumpellyite Subgroup1
Garnet Group1
Data
Mineral Data:Click here to view Glaucophane data
Locality Data:Click here to view Ward Creek [2], Cazadero, Coast Range, Sonoma County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1960831
Long-form Identifier:1:3:1960831:8
GUID (UUID V4):0
Nearest other occurrences of Glaucophane
1.6km (1.0 miles) ⓘWard Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
9.9km (6.2 miles) ⓘMouth of the Russian River area, Jenner, Russian River Mining District, Coast Range, Sonoma County, California, USA
11.1km (6.9 miles) ⓘGuerneville, Guerneville Mining District, Coast Range, Sonoma County, California, USA
18.5km (11.5 miles) ⓘCamp Meeker, Coast Range, Sonoma County, California, USA
29.5km (18.3 miles) ⓘEbabias Creek, Valley Ford, Sonoma County, California, USA
29.6km (18.4 miles) ⓘValley Ford, Sonoma County, California, USA
39.0km (24.2 miles) ⓘRosenhahnite occurrence, Russian River, Cloverdale area, Mendocino County, California, USA
42.5km (26.4 miles) ⓘMelitta, Santa Rosa, Sonoma County, California, USA
43.3km (26.9 miles) ⓘWall Street Mine (Cincinnati Mine; Nevada Mine), Castle Rock Springs, East Mayacmas Mining District, Lake County, California, USA
64.3km (40.0 miles) ⓘNicasio, Marin County, California, USA
References
Shibakusa, H., Maekawa, H. (1997) Lawsonite-bearing eclogitic metabasites in the Cazadero area, northern California. Mineralogy and Petrology, 61 (1) 163-180 doi:10.1007/bf01172482
 
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