10 



California Division of Mines and Geology 



Bull 197 



several localities northwest and west of Wilbur 

 Springs. The following occurrences have been report- 

 ed: 



1. Brown oragonite from o thin vein at the "heod of Sulphur 

 Creek" was once shipped to England for sale. The vein was 

 situated on 48 acres of land owned by California Onyx Com- 

 pany (Irelan, 1888, p. 159). 



2. Brown, delicately banded oragonite, referred to as "Brown's 

 agate", come from a locality about a mile west of Wilbur 

 Springs where the material occurred os float (Goodyear, 1890, 

 p. 156). 



3. Hard, white calcium and magnesium carbonate rock, with en- 

 closed shale fragments, is exposed as o prominent ledge below 

 the Judge Moor tunnel near the Elgin mercury mine (Waring, 

 1915, p. 105-1061. 



4. A ledge of brown onyx marble crosses the creek half o mile 

 upstream { W'/j sec. 13, T. 14N., R. 6W.) from the Elgin mine. 

 "The deposit has not been worked commercially" (Waring, 

 1915, p. 106] . 



5. A "capping" of brown, bonded onyx marble o foot thick, 20 

 feet wide, and 150 feet long is reported to lie a mile north of 

 the Elgin mine. This deposit was located in 1929 and was known 

 as the Warwick group of claims (Logan, 1929, p. 292). 



None of the deposits appear to have significant poten- 

 tial as sources of limestone, but some may be of inter- 

 est as sources of ornamental material. It is reported 

 that one of the deposits near the Elgin mine was 

 worked in a small way in the early 1960s as a source 

 of decorative stone. 



Other reference: Logon, 1947, p. 220. 



Unnamed deposit (near Abbott mine). Location: 

 Near NE'/ sec. 31, T. 14 N., R. 5 W., M.D., 18 to 19 

 miles southwest of Williams; Wilbur Springs \5- 

 minute quadrangle. Ownership: Not determined. 



Limestone has been reported near the Abbot mer- 

 cury mine but has never been described. Perhaps it is 

 related to the white deposit of calcareous tufa exposed 

 in a road cut near the mine (C.W. Jennings, 1964, oral 

 communication) . 



References: Crawford, 1894, p. 392; Brodley, 1916, p. 206; Logan, 1947, 

 p. 248. 



