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Sillimanite from
South of Mesa Grande, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA


Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Comments:Occurs as needles 1 to 2 cm in length in schists.
Habit:Acicular
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view South of Mesa Grande, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
Data Identifiers
Mindat Occurrence Record ID:639951
Long-form Identifier:1:3:639951:1
GUID (UUID V4):1ab727b4-17be-4b3e-97d0-88de5817e866
References
Reference Search (possible matching items)
Report (issue)
RESOURCES OP CAMPO, MESA GSRANDE, LA JOLLA, AND PAUMA INDIAN RESERVATIONS, SAN DIEGO COUNTY, CALIPCRNIA Sy...the request of the Bureau of Indian Affairs, Department of the Interior Sacramento, California October 1953...1953 4- 3S CONTENTS Page General features of the investigation .........« r 7 Introduction .....Purpose and scope of the investigation **...» Topographic and geologic setting of the reservations Climate...4*. *.....». ».,...* Water-bearing characteristics of the crystalline rocks * * Hock types ..*«...**..
Journal (article/letter/editorial)
BULLETIN OF THE GEOLOGICAL. SOCIETY OF AMERICA VOL. 57, PP. 223-260. 2 PLS., 4 FIGS. MARCH 1946 IGNEOUS...METAMORPHIC ROCKS OF THE SOUTHWESTERN PART OF THE RAMONA QUADRANGLE, SAN DIEGO COUNTY, CALIFORNIA BY RICHARD...Quartz-mica schists Sillimanite schists Amphibolites Dikes cutting the schists Origin of metamorphic rocks...Injection gneiss Conditions of metamorphism General considerations Age of the schists Gabbro General consideration...238 238 238 238 240 224 RICHARD MERRIAM—ROCKS OF RAMONA QUADRANGLE Green Valley tonalite General
Report (issue)
MINERALS OF CALIFORNIA THE GOLDEN BEAR The Golden Bear Nugget of Yankee is NUGGET said to have...have been found in the mining the nugget Jim, Placer County, California, in 1871 by a small girl in...lost identity of the nugget's finder, and the lock of record of her lifetime part of the mystery that...nuggets. The nugget was acquired by the California Federation of Minerologicol Societies insignia fornia...1952. of Mines and Geology mineral exhibit in in the Cali- San Francisco MINERALS OF CALIFORNIA
Report (issue)
_|^_g|g„gy. MMM STATE OF CALIFORNIA GOODWIN I. KNIGHT, Governor DEPARTMENT OF NATURAL RESOURCES DEWnT...NELSON, DIVISION Director OF MINES FERRY BUILDING, SAN FRANCISCO OLAF San Francisco P. 11 JENKINS...BULLETIN December 173 MINERALS OF CALIFORNIA By JOSEPH MURDOCH University of Caliiomia, Los Angek j Los...University of California, Santa Barbara College Goleta, California Price $3.00 LIBRARY UNIVERSITY OF CAUfORNIA... LETTER OF TRANSMITTAL To Ills Excellency The Hoxorable Goodwin J. Knight Governor of ihe State of California
 
Mineral and/or Locality  
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