Document oDG4LkG4XYVYxgGa4JdMgBpLg

FILE NAME: Wagner (WAG) DATE: 1978 June DOC#: WAG032 DOCUMENT DESCRIPTION: US Govt Report - Special Report on Talc Resources-A Supply and Marketing Study S P EC IA L R EP O R T Oi'i T A L C RESO U RCES A CUP? LY A\'D Y AR KETIN G STUDY ?: tzzryd by C2r=n--2 V.'crde ic /o u Y:n:ng and Minerals.Division Washington Office ?! San Francisco, California s a United States Department of the Interior / Nations) Park Service -''s . ' r"Tr*,-Vt-, ' W* j , i i r i r r i !"r i, -V.- '-A-V r'rrrfi?. i, A -1 8 9 T - f ' - X-^ *-Trr o tv rrp *^ '  L? ill p ii $ i t 11 ik !i vt The third ownership is that of Continental Minerals Corporation, which covers the Big Talc and Warm Springs groups of claims located at the lowerend of Warm Springs Canyon. Under previous ownership, the Big Talc mine was also known 3s the Grantham mine, AH of the referenced claims are covered by Talc Resource Area C on Map No. 2. In 1976 the California Division of Mines and Geology published a comprehensive review of the talc deposits listed above.^ Further description in this report would be redundant. However, some developments have occurred in the past two years and should be noted. In August 1976 Johns-Manvilie Corporation, then owner of the Big Talc end < Warm Springs claims in Warm Springs Canyon, ceased production of talc c from two open pits and offered for sale all of its properties within the monument, as well as its grinding plant in Dunn, California. In late " 9J7 these talc mineral properties were purchased by Desert Minerals, Inc,, en _ associate of Old Hickory Clay Company of Paducah, Kentuck. Subsequently, in May 1978, the mineral properties and the grinding plants in Dunn and Los Angeles were acquired under lease and option sa'as agreements by Continental Minerals Corporation of Las Vegas, Nevada. Aho acquired was Johns Manville's marketing company. Desert Minerals, located in Los Ar.celes. Continental has announced plans to resume production at the Big Talc mine to supply talc to competitive markets by late 1973. The talc deposits in this area are believed to contain considerable tremolo:; however, a report by the Director of Research of a former Grantham Company (a'so called Desert Minerals), which crour.d the Warm Springs Canyon talc, indicated the lower bed contained talc pseudomcrphs "her rremoMte and "4.8 percent rickerite, a nonfibrous micro-sited soda trerroiite." The Big Talc mine operated almost continuously frem 1942 to 1975. Total production is reported to be about 830,000 short tons of ta'c, most from underground rcom-and-pillar mining. Measured reserves in the form of pi,Jars in the lower talc bed of the deposit, from which moAstn of the tonnace mice was derived, are estimated to be 1.3 million tons."1 An industry soarcs familiar with the deposits stated that recoverable resources outlined by 42. Evans et ah, p. 40. 43. Evans et al., p. 41. 36 A- 19 0