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Pyrolusite from
Vann Ranch prospect (Van Ranch Middle Creek; Black Rock; Grizzly Canyon prospect), Vann, Lake Co., California, USA

Mineral Species
Species:Pyrolusite
Formula:MnO2
Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 98; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 164.
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Vann Ranch prospect (Van Ranch Middle Creek; Black Rock; Grizzly Canyon prospect), Vann, Lake Co., California, USA
Nearest other occurrences of Pyrolusite
15.7km (9.7 miles) A Phillips Mine (Grand View Mine; White Rock Mine), Phillips Ranch, Laurel Dell, Lake Co., California, USA
16.6km (10.3 miles) B Unnamed Cu-Mn occurrence, Red Mountain, Red Mountain District, Mayacmas Mts (Mayacamas Mts), Mendocino Co., California, USA
19.0km (11.8 miles) C Wild Devil Mine (Waldteufel; Waldteufel Mine), Potter Valley area, Coastal Range, Mendocino Co., California, USA
19.1km (11.9 miles) D Bevins-Busch Mine (Bevins-Busch deposit; Lee Mine; Potter Valley Mine), Potter Valley area, Coastal Range, Mendocino Co., California, USA
20.1km (12.5 miles) E Redwood Valley, Mendocino Co., California, USA
24.7km (15.3 miles) F Foster Mountain Mine (Foster Mountain deposit; Memorial; Busch; Independant; Lucky Boy), Hearst, Coastal Range, Mendocino Co., California, USA
26.1km (16.2 miles) G Harms prospect, Hearst, Coastal Range, Mendocino Co., California, USA
27.8km (17.3 miles) H Dorn prospect, Hearst, Coastal Range, Mendocino Co., California, USA
33.6km (20.9 miles) I Consolidated No. 7 claim, Hearst, Coastal Range, Mendocino Co., California, USA
34.1km (21.2 miles) J Black Diamond North Star Mine (Black Diamond Mine), Sugarloaf Hill, Coastal Range, Glenn Co., California, USA
34.6km (21.5 miles) K Mrs. Knight prospect, Fair Oaks, Coastal Range, Mendocino Co., California, USA
36.4km (22.6 miles) L Dow prospect, Clear Lake Oaks, Sulphur Creek District (Sulfur Creek District; Wilbur Springs District), Lake Co., California, USA
36.5km (22.7 miles) M K. B. No. 1 prospect (K.B. No. 1 claim), Elephant Hill, Coastal Range, Glenn Co., California, USA
37.4km (23.3 miles) N Brown and Moore prospect, Sugarloaf Hill, Coastal Range, Glenn Co., California, USA
37.4km (23.3 miles) O K. B. No. 4 claim, Sugarloaf Hill, Coastal Range, Glenn Co., California, USA
38.1km (23.7 miles) P Stonyford, Coast Ranges, Colusa Co., California, USA
38.7km (24.1 miles) Q Rattlesnake Mine, Sugarloaf Hill, Coastal Range, Glenn Co., California, USA
42.3km (26.3 miles) R Callizo prospect, Duncan Springs, Coastal Range, Mendocino Co., California, USA
44.9km (27.9 miles) S B. S. No. 1 prospect (B.S. No. 1 claim), Alder Springs, Coastal Range, Glenn Co., California, USA
45.5km (28.3 miles) T Rowlison prospect, Longvale, Coastal Range, Mendocino Co., California, USA
49.2km (30.6 miles) U Elliott prospect (Elliot prospect), Caldwell Pines, East Mayacmas District, Mayacmas Mts (Mayacamas Mts), Lake Co., California, USA
49.8km (30.9 miles) V Shaw Mine, Shaw Ranch, Cloverdale, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA
49.9km (31.0 miles) W Rose Mine, Longvale, Coastal Range, Mendocino Co., California, USA
49.9km (31.0 miles) X Hummingbird prospect, Alder Springs, Coastal Range, Glenn Co., California, USA
51.7km (32.1 miles) Y Wishbone claim (Graham claim), Longvale, Coastal Range, Mendocino Co., California, USA
57.5km (35.7 miles) Z M. G. Morrison prospect (Morrison prospects), McClure Place, Coastal Range, Mendocino Co., California, USA
60.4km (37.5 miles) 0 Big Bend claims (Big Bend deposit), McClure Place, Coastal Range, Mendocino Co., California, USA
64.5km (40.1 miles) 1 Long Mine (Earl W. Long prospect; Earl W. Long deposit; Happy Four; Happy Hour; Last Chance), Woodman, Coastal Range, Mendocino Co., California, USA
67.8km (42.1 miles) 2 Two Trees prospect (Two Trees deposit), Leech Lake Mountain, Reeves Place, Coastal Range, Mendocino Co., California, USA
68.0km (42.3 miles) 3 Boyer Mine (Wheeler Mine; Shanks and Copps), Warm Springs Dam, Coast Range, Sonoma Co., California, USA
70.1km (43.6 miles) 4 McLaughlin claims (McLaughlin deposit; Blands Cove), Leech Lake Mountain, Reeves Place, Coastal Range, Mendocino Co., California, USA
72.3km (45.0 miles) 5 McLaughlin Mine (Manhattan Mine), Knoxville, Knoxville District, Napa Co., California, USA
74.9km (46.5 miles) 6 Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville District, Napa Co., California, USA
94.9km (58.9 miles) 7 Blue Jay Mine (Blue Jay claim; Blue Bird Mine; McKnight; McKnight), Three Forks, Coastal Range, Trinity Co., California, USA
99.2km (61.6 miles) 8 Lucky Sunday and Billy Sunday claims (Lucky Sunday claim; Billy Sunday claim), Three Forks, Coastal Range, Trinity Co., California, USA
105.3km (65.4 miles) 9 Double-A prospect (Double A prospect), Van Horn Peak, Coastal Range, Trinity Co., California, USA
Mineral and/or Locality  
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