 | | Report (volume) | | Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding each mineral indicate...rated as 10, is many times harder than corundum, rated as 9. Corundum is placed next to diamond only because...all other green stones (Smith, 1949, p. 175). Corundum was referred to as "oriental" because the first...pale-green beryl to blue, violet corundum to rose pink, and yellow corundum to colorless. Dyeing is another...as synthetic alexandrite is actually synthetic corundum. A stone of simple chemical composition generally |  | | Book | | Photographs by Mike Caggiano ASSOCIATION PRESS • New York FINDING AND PREPARING PRECIOUS AND SEMIPRECIOUS...James A. Peterson Association Press, 291 Broadway, New York, N.Y. 10007 All rights reserved. No part of this...nature of the rock itself, the emergence of new chemicals and new formations. An example of the radical change...as mica, apatite, sphene, zircon, fluroite and corundum are associated with light-colored igneous rocks...combine to form Minerals - " Rubies and Sapphires (Corundum) which combine with Biotite Mica to form R°ck |  | | Book (volume) | | chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...gem qualityagatized and opalized wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford...woods, etc. DAWSON COUNTY GOTHENBURG, in sand pitspetrified palm wood. DEUEL COUNTY CHAPPELL, all regional |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |
|
