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Holst-Weeks prospect (Holst-Weeks deposit), West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA

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List of minerals arranged by Dana 8th Edition classification
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Neotocite71.1.5.4(Mn,Fe,Mg)SiO3 · H2O


1 entry listed. 1 valid mineral.

References

Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 187.

Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 284.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 415.

Mineral and/or Locality  
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