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University of Texas Bulletin No TEXAS UNIV. BUR. OF ECON. GEOLOGY PUBLICATION (BULL.) 1814 8291-818-2 m University of Texas Bulletin No. 1814: March 5, 1918 Chemical Analyses of Texas Rocks and Minerals By E. P. Schoch BUREAU OF ECONOMIC GEOLOGY AND TECHNOLOGY J. A. UDDEN, Director BIVISIOH OF CHEMISTRY E. P. SCHOCH, Head of the Division PUBLISHED BY THE UNIVERSITY SIX TIMES A MONTH. AND ENTERED AS SECOND»CLASS MATTER AT THE POSTOFFICE AT AUSTIN. TEXAS. UNDER THE ACT OF AUGUST 24. 1912 KEY FOR USE OF THIS PUBLICATION. The table of Contents gives the general headings under which the analyzed materials are classified, together with the numbers under which the samples and their analyses are recorded and the numbers of the pages in Part 1 and Part 2 respectively on which the data for these analyses appear. Part 1 states the sources etc. of the samples, arranged in alphabetical order of the counties in which they were obtained. Each topic in Part 1 opens with a statement of general infor- mation on such —matters as the occurrence of the analyzed ma- terial in Texas, the relation between— the composition of the material and its economic value, etc. Part 2 gives the analyses proper in the order of the analysis numbers. To find the analysis of —any particular material from any particular county in Texas,- First, look through the Table of Contents for the heading under which the material is given; and note the corresponding page number in Part 1 (for later use, note also the corre- sponding page number in Part 2) ; Second, turn to this page in Part 1, and by following the counties in their alphabetical order, find the county desired, and note the different parts of the county from which samples were obtained ; Third, after selecting a particular analysis, note its number and turn to Part 2 for the same number to secure the analysis proper (the approximate page number for this last reference was obtained before from the Table of Contents.) Table of Contents Page Key for Use of this Publication 1 INTRODUCTION Origin and Purpose of this Publication .. 2 Arrangement of Material 2 Sources,. Selection, and Tabulation of Analytical Data 3 Abbreviations of Sources of Anaylses. t :. 5 List of Sources of Analyses 5 List of Analysts (Key to Initials of Names) 11 iv Table of Contents Classification of Analyzed Materials — *Note: Part 1 presents Sources of Samples, etc.; Part 2 presents the Analytical Results. ' I |4 |. « ?3 £ too a ha <& A. SEDIMENTARY ROCKS 1-1151 15-67 169-184 ISand and Sandstone \u25a0. 1-33 15-19 169 Note on Composition of Sand Used Industrially 15 II Greensand 34-76 • 19-22 170 Note on Composition and Occur- rence of Greensands in Texas 19 11l Alluvium 77-93 22-24 171 Note on Composition 22 Ilia Caliche 93a-93b 23-24 171 Definition of Term 23 IV Clay, Shale, and Marl 94-311 24-36 171-175 Definition of Terms 24 V Ftolee's Eabth 312-319 36-38 175 Note on Composition and Method of Testing to Reveal Quality 36 VI,,Limestone 748-1061 38-59 175-181 Note on Occurrence and Com- position 38 Cambrian '. 746 39 175 Ordovician 747-753 39 176 Pennsylvanian 754-775 40-41 176 Permian 776-790 41 176 Comanchean Cretaceous 791-908 42-48 176-179 Upper Cretaceous 909-940 48-49 179 Tertiary 941-943 50 179 Pleistocene 944-947 50 179 Unclassified 948-1061 50-59 180-181 VII Dolomite 1062-1090 59-62 182 Note on Composition, Properties, and Occurrence 59 ...... VIII Kaolin 1091-1096 62-63 182 Introductory Note 62 IX Salt 1097-1100 63 182 Note on Occurrence 63 X Anhydrite 1101 63-64 183 Introductory Note 63 Table of Contents v mo, 6 „ h 6 © % <p E <ti % OB csj b/) Xl <ri (1, Qi XI Novaculite 1102-1105 64 183 . Note on Composition, Use and Occurrence 64 ' XII Ppiosphatic Rocks 1106-1120 64-65 183 Note on Occurrence 64 XIII Asphaltic Rocks 1121-1151 65-67 184 Note on Occurrence 65 B. IGNEOUS ROCKS 1152-1231 67-73 184-187 Introductory Note 67 C. METAMORPHIC ROCKS 1234-1237 73-75 188 I Marble 1234-1237 74-75 188 II Serpentine .1238 75 188 LIGNITE 1239-1462 75-88 189-195 Note on Occurrence 75 COAL 1463-1573 88-95 196-198 Note on Occurrence 88 IPennsylvanian 1463-1501 88-90 196-197 IICretaceous 1502-1557 91-94 197-198 11l Cannel Coal 1558-1573 94-95 198 IRON ORE 1574-1813 96-108 199-202 Note on Occurrence 96 ....... ITertiary Ores 1574-1717 96-103 199-201 II Other leon Ores 1718-1813 103-108 201-202 ORES OTHER THAN IRON 1814-2025 108-119 203-205 ICopper Ore 1814-1885 108-112 203 II Silver Obe 1886-1921 112-114 203 • Til Lead Ore 1922-1950 114-115 203 IV Gold Ore. 1952-1963 115 203-204 V Zinc Ore 1964-1974 115-116 204 VI Mercury Ore 1975-2005 116-117 204 VII Manganese Ore. 2006-2014 117-118 205 VIII Titanium Ore 2015 118 205 i IX Tungsten Ore 2016-2023 118-119 205 X Uranium Ore 2024-2025 US, 205 \u25a0t XI Sulphur Ore 3075-3098 119-121 254 Introductory Note 119 POTASH SOURCES 3099-3160 121-124 255-256 NITRATE SOURCES. 3157-3162 124 253 and 256 vi Table of Contents m O O \u25a0a • & &\u25a0*" c 3Jz; be a3 bfl c3 Pi c<3 c 3P-i <J ft) Ph PL, NATURAL GAS 2116-2153 125-127 206 Note on Sources, Composition, etc 125 WATER 2154-3011 128-163 207-249 Relation of Composition to Source 128 Manner of Reporting the Analyt- ical Results 129 Relation between Salt Content and Quality 131 IWell Water 2154-2573 134-157 207-227 II Surface Water 2574-2957 158-160 227-246 111 Unclassified Wateb 2958-3011 160-163 246-249 MINERALS OF DEFINITE COMPOSI- TION Allanite, Llano County 3065 165 254 Andradite, Mason County 3056-3057 165 253 Asbolite, Culberson County. ......3026 163 250 Augite, Uvalde County 3061 166 253 Babyte, Llano County 3036 164 251 Bauxite, Culberson County 3027 a 164 250 Bauxite, Reeves County 3027b-3027c 165-166 250 Bokax, El Paso County 3038 164 251 Celestite, Travis County 3066 166 253 Chalcocite, Jones County 3033-30.34 164 251 Eglestonite, Brewster County 3023 163 250 Epsomite, Brown County 3070-3071 163 254 Fergusonite, Llano County 3046-3047 164 252 Gadolinite, Burnet and Llano Coun- ties 3028-3031 163-164 251 Gbahamite, Fayette County 3064 164 253 Grahamite, Webb County 3063 166 .253 Graphite, Llano County. 3073-3074 165 254 Haixoysite, Edwards County 3037 164 251 Jet, Presidio County 3062 165 254 Kleinite, Brewster County. 3012-3021 163 250 Mackintoshite, Llano County. ...3048-3049 165 252 Metagadolinite, Llano County 3051 165 252 Onyx, San Saba County 3058-3059 166 253 Poweblite, Llano County 3052 165 253 Rowlandite, Llano County 3041 164 251 Soapstone, Llano' County 3035 164 251 Sfessarite, Llano County. ... 3042 164 251 Table of Contents vii b>i • -ij -(-5 A? O 0 v 0 h rt % bD cS ba d Tengerite, Llano County 3050 165 252 Tepiiboite, Mason County 3055 165 253 Terlinguaite, Brewster County. ...3022 163 250 Tiiohogumite, Llano County 3043 164 252 Uraninite, Llano County ..3044-3045 164 252 Wolfbamite, Culberson County. .. .3039-3040 164 251 Yttrialite, Llano County 3053-3054 165 252 METEORIC IRON 3133-3143 166-167 256 BAT GUANO 3142-3147 167 255 WOODS 3148-3156 167-168 Z55 Introduction Origin and Purpose opof this Publication.—Publication. The value of a natural product depends largely upon its chemical composition, and since chemical analyses of natural products found in Texas are irregularly scattered throughout the literature and prac- tically inaccessible, even to people who are interested in them, it was suggested by Dr. J. A. Udden, Director of the Bureau of Economic Geology and Technology of the University of Texas, that we collect and publish all the reliable analyses of Texas natural products which have appeared in print or are otherwise accessible. Much of the collecting and tabulating of the material was done by T. F. Buehrer (M. A., Texas, 1918), N. H.Moore (M. A., Texas, 1916), and T. W. Bay (M. A., Texas, 1917). Some of the proof reading was done by J. E. Stullken (B. A., Texas, 1911). Dr. J. A. Udden has contributed a number of notes and has made many helpful suggestions. Appreciation of the writer's indebtedness to these co-workers is gratefully expressed here. Arrangement of Material. The arrangement of the ma- terial in this publication is given in the Table of Contents. The following remarks are mainly for the purpose of explaining the arrangement adopted. The number of different substances considered in this publi- cation is not large; hence it did not appear to be necessary to arrange the substances in any particular or systematic order. They are easily found by consulting the Table of Contents. For the reader's convenience, there appears at the top of each page, the name of the sort of material presented by the data on that page. It appeared to be desirable to sub-divide each kind of material according to its occurrence in different geological formations, but it was not found practicable to do this except with lime- stone, coal, iron ore, and petroleum; hence other materials have not been sub-divided in this manner. The different individual specimens of any one sort of mate- Chemical Analyses of T,exas Rocks and Minerals 3 rial of which analyses are given are listed in Part 1in the al- phabetical order of the counties in which the analyzed samples were collected.
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