| | Book (volume) | publisher. Cover photograph: Fluorapatite, Pulsifer quarry, Auburn, Maine (2.2 cm specimen), Harvard Mineralogical...greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...American green and red gem tourmalines are from Paris, Poland, and Newry. These gems might qualify as world's | | | Book (edition) | Zeolites Section 'riioiusonit(\ b. 1 2h\S Group 1 i singcrite Chlorite Gi\>uj> . 397 310 312...484 42(5 L biliceons 2. Mica and Dotasli-IMcDpar Series 487 8. Mica and Sodadime Feldspar Series...scale to soapstone at the other. There is a still lower limit in liipihls and gases ; hut of the hardness...dehimself that will answer a good purpose. Bcribed on mica or a glazed card, and graduated. The arms might...also be made of stiff card for temporary use ; but mica, bone, or metal is better. The arms should have | | | Report (issue) | MENDON, VT., E. J. FOYLES .......... COMPRESSED MICA RESEMBLING GRAPTOLITES, E. J. FOYLES ........ JOHN...phyllite schist, Springfield, Vt . .............. 21—Quarry, granite-gneiss. Zenolith of Cavendish schist,...undisturbed order there can be little doubt that the lower beds were laid down before those above them. A relative...but how much of the mountain masses and of the lower areas of the State, now occupied by metamorphic...the oldest age in which life existed, some of the lower forms did live. In Vermont no fossils have been | | | Report (volume) | SURVEY GEORGE OTIS SMITH, Director Bulletin 740 MICA DEPOSITS OF THE UNITED STATES DOUGLAS B. STERRETT...Physical properties_____________________________ Mica mining__________________ ____ _ ________ . Hist...Methods_____________________:_____________ Preparation of mica for the market____________________ Uses________...General features____________________________ Coosa County _________ ____________________ Randolph County...Cherokee County_____________________________ 72 Elbert County _____________________________ 75 Hall County__ | | | Report (issue) | quartz, feldspar, mica and other minerals. As the mass cools the attraction of the mica molecules for one...arrange themselves in a definite order and build up a mica crystal. The feldspar molecules appear PROPERTIES...later, and the quartz molecules still later. 'fhe mica crystal gets a start and may even complete its building...upper end of the vertical axis and four about the lower encl. The edges 16 COMMON MINERALS AND ROCKS...of pyramid faces and the alternating two of the lower set of pyramid faces. Fig. 21represents a sphenoidal | | | Book | their economic value. metals, many minerals of lower me- tallic content than those now used as ores... SEMI-Precious METALs p. The Platinum Metals Group Platinum eee Iridium . Osmium VIl. ALKALI Caesium...Semi-METALS 208 a. Group! . 208 208 211 215 218 218 aye 223 Arsenic . Antimony Bismuth B. Group II Selenium...Amphiboles . B. Minerals of Sedimentary Rocks . Kaolin Group . Quartz Calcite and Related Minerals, XVI. Minor...CHAPTER Clintonites or Brittle Micas Chlorite Group... The Kaolin Minerals heal Related Fiydeaas Alaotra | | | Book | discussing the sources of the metals, many minerals of lower metallic content than those now used as ores are...Gold and Silver Gold Silver The Platinum Metals Group Platinum Iridium Osmium Palladium Rhodium Ruthenium...Rubidium Caesium VIII. • •• Group I Arsenic Antimony Bismuth Group II Selenium Telurium Boron 1 49...MINOR METALS OF LIMITED INDUSTRIAL VALUE A. Group I Gallium Indium Scandium Thallium Yttrium Germanium...Amphiboles • • Minerals of Sedimentary Rocks Kaolin Group Quartz . Calcite and Related Minerals MINOR AND | | | Report (volume) | Clay County. Macon County. Jackson County. Transylvania County. Swain County. Haywood County. Buncombe...Buncombe County . Madison County. Yancey County. Mitchell County . Watauga County . Wilkes County. Ashe County...County . Alleghany County . Physiography and ecology of the peridotites. 28 28 29 32 34 35 36 38 42 46...mag¬ nesian rocks. Shooting Creek region, Clay County, North Carolina. Elf dunite. Elf amphibole-peridotite...serpentine. Mica-diorite and amphibolite near Marshall. Peridosteatite at the Madison County Home. Peridotites | | | Book | Netherlands, 1994 CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton...by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business...radioelements 28 Chapter 2. Deposits of the first group 31 2.1. Diamonds 32 2.2. Beryl, topaz and tourmaline...103 2.7. Asbestos 107 2.8. Mica—muscovite 131 Contents VI 2.9. Mica—phlogopite 146 2.10. Rock...Conclusions 192 Chapter 3. Deposits of the second group 195 3.1. Apatite 196 3.2. Phosphorite 214 | | | Journal (volume) | nce of Pouitifagas: Strata in n the O eCarntiit} Group of Middle Pesueyhenains ieee eae aus eee COMMON...Nevada Biped Tracks urate68; The Ploy of Chester county, Penna., 72 ; Kowalevsky on Elasmotherium, 72;...Minerals, 74; Axinite from a Annual Bethlehem, group of Minerals, 76; Heating oe. 75; for the Microscope...Dust Shower, 654; Microlite from Elba, 654; Amelia County, Va., minerals, 654; The Wm. S. Vaux Collection...Misrata ppd position vasie Archipolypdcs, a + group oi RN The COANE ME 324; 326; The Vogmar o ; Shufelde’:s |
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