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Hogan-Mallery Tin Mine (Hogan-Mallery Meek Mine; Hogan Tin Mine; Meeke Tin Mine; Meeke-Hogan Tin Mine; Meeke-Hogan Mine), Tejon Tin project (Gorman Tin project), Lebec, Gorman District, Tehachapi Mts, Kern Co., California, USA

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Latitude & Longitude (WGS84): 34° 50' 14'' North , 118° 44' 29'' West
Latitude & Longitude (decimal): 34.8372222222, -118.741388889
A former Sn occurrence/mine located in sec. 25, T9N, R18W, SBM, 11.1 km (6.9 miles) E of Lebec and 11.1 km (6.9 miles) ENE of Gorman (Los Angeles County), 4 miles N of Quail Lake (located on a flat spur halfway between Alamos Creek and Black Canyon, about 0.5 mile from the edge of the valley floor, on the S slope of the Tehachapi Range), on private land. Discovered in 1918. MRDS database stated accuracy for this location is 10 meters. The section is approximate.

Mineralization is hosted in limestone. The ore body is 10 meters thick, 3 meters wide and 50 meters long with a depth-to-top of 4 meters. Ore body No. 1 is tabular replacement deposit. Ore body No. 2 is an irregular stiockwork deposit. Ore body No. 3 is other, sedimentary. The primary mode of origin was contact metasomatism. Primary ore control was a contact zone and the secondary mose was lithology. Wallrock alteration is moderate (bleaching, dolomitization & sericitization). The rock is extremely......(truncated data). The W ore body is 275 fet long, 40 feet wide and lenses out at both ends. The E ore body is 100 feet long, up to 30 feet wide and lenticular in shape. The deposit is in bleached, recrystallized limestone, about 200 feet from the nearest outcrop of granite. Four main faults cut the sedimentary rocks. The E normal fault dips 70E and moved the block N as much as 1,000 feet. The N fault strikes N60E and dips nearly vertical, with the N block about 120 feet SW relative to the S block. Two smaller faults strike N60E and dip 45 or more SE. Joint sets strike E and dip 70-80S, and N50W, dipping steeply. A flat-lying dolomite thrust sheet probably extended above the deposit a few feet above the present surface. Cassiterite occurs as dark brown grains and crystals up to ½ inch (1.25 cm) in diameter, but most grains are small. It occurs as stringers, clusters and disseminations throughout gossan. Other minerals present are magnetite, tourmaline, pyurite, epidote, garnet, chalcopyrite, calcite, ludwigite, arsenopyrite, galena, scheelite and powellite. Actions of hydrothermal solutions in the contact metamorphic zones have altered....(truncated data). The ore had small amounts of impurities. Associated rocks include Late Jurassic granite. Local rocks include limestone of probable Paleozoic or Mesozoic age.

Workings include unspecified surface and underground openings.

Analytical data results: The ore grade shipped was 36 to 49% Sn with the average grade at 40% Sn.

Mineral List

22 entries listed. 18 valid minerals.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Mallery, Willard (1944), Tin in California: Dana Magazine: 2: 8-11.

Bedford, R.H. & F.T. Johnson (1946), Survey of tin in California: US Bureau Mines Report of Investigation 3876: 6-7.

Page, Lincoln Ridler (1946), Contact metamorphic deposits of Cassiterite in California: (abstract) Geological Society of America Bulletin 56: 1187; […American Mineralogist (1946): 31: 202].

Wiese, J.H. & L.R. Page (1946), Tin deposits of the Gorman district, Kern County, California: California Journal of Mines and Geology, California Division Mines (Report 42): 42(1): 31, 36-45, 46, 49, 51-52.

Bedford, R.H. & Ricker, S.R. (1949) Investigation of the Hogan Tin Kern County, California: U.S. Bureau of Mines Report of Investigation IC 4609: 1-10.

Wiese, J.H. (1950), Geology and mineral resources of the Neenach quadrangle, California: California Division Mines Bulletin 153: 45-46, 53.

California Division of Mines & Geology (1957), Bulletin 176: 643.

Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report 1, 370 pp.: 290-294.

Gray, Clifton Herschel, Jr. (1966) Tin. In: Mineral and Water Resources of California: California Division of Mines, Bulletin 191: 422-425.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 121, 381.

Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 99.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 48, 79, 149, 174, 175 (map 4-11), 182, 217, 236, 276, 336, 339, 435, 481, 502.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10110529 & 10212342.

U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060290003.

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