 | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Hardness Scale 6. Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4...Your will scratch orthoclase feldspar but not quartz. In making hardness appears to be a scratch paper...the general arrange- ment of these surfaces. Quartz and amethyst, for example, are frequently crystallized...SPODUMENE DANBURITE DATOLITE GARNET FLUORITE QUARTZ CRYSTALS SPINEL STAUROLITE •^^ VESUVIANITE |  | | Book (volume) | | gold-bearing areas. Lode deposits usually consist of Quartz veins in solid rock, while placer deposits occur...Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE: |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet __ Azurite, Malachite, Chrysocolla...with respect to one another. gem minerals The quartz gems, such as amethyst, form crystal prisms with...another at 60 degrees and intersected by a fourth Quartz and vertical axis at right angles to the other...other, light) FELDSPAR TWINS I J PHENACITE QUARTZ CRYSTALS ffrl (^h /&> ^& \b^ ^ VESUVIANITE |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | 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...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T...S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee...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...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T...S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book | | Lakes States Wisconsin, Indiana, Illinois, Michigan, by June Culp Zeitner $5.95 Gem Guides Book... and Michigan. Dow Chemical has reported finding diamonds in the kimberlites of upper Michigan, and vast...shoreline on both Lake Superior and Lake Michigan. Michigan is the state with the most shoreline on these...fresh water seas, with waters of Lake Superior, Michigan and Huron virtually surrounding it. Illinois and...and Indiana are bordered in part by Lake Michigan, and Ohio hugs the edge of Lake Erie. These states |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...Diamond M Tourmaline fQl Ruby, O Sapphire Quartz crystal 'y^ Garnet — Azu rite, Malachite, Chrysocolla...fluor-spar from Derbyshire or, perhaps, a pyramid of smoky quartz from Cumberland. The next it may be rock crystal...Talc 6. Orthoclase feldspar 2. Gypsum 7. Quartz 3. Calcite 8. Topaz 4. Fluorite 9. Corundum...faces are placed with respect to one another. The quartz gems, for example, such as amethyst, form crystal |  | | Book | | HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...of natural history A prospector's pick with a point on one end and the pleasures of miner- amateur...how to organize Equipment foot a four-sided point, cutting flat material and for removing INDISPENSABLE...they may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey |  | | Book (volume) | | Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal step cut violetish pink...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill O. Murphy...Geology, Missoula, MT; Carl Scott, Scott’s Red Rose Quartz, Custer, SD; Sharon Skalko, The Amber Co., North | | | Book | | working on solid rock A prospectors pick with a point on one end and a square hammerhead on the other...as a p1ckax Two chisels, one with a four-sided point and the other with a flat cutting edge as thick...topographic map of the Delaware q uadrangle o f Keweenaw County, Michigan This ,s an example o f the more picturesque...frlled with geodes lined with glittering calcite or quartz. Otten these can be found where they have been...known as pegmat1te Prospectors look for pieces of quartz and mica then try to trace the long narrow pegmat1te |  | | Book | | of quartz and its a great gems other than and varieties, with favorite location of quartz agate...beautiful in BOX 244 3BURY, VT 0581Q «r and Other Quartz Gems by ! the field and useful gems or novelties... THE HOOF. OF AGATES And Other Quartz Gems And Other Quartz Genis liy Lelande (Juich CHILTON...author believes that this is a needed book on the quartz gem minerals. Needed by whom? Needed by the more...cut into cabochons or faceted stones are in the quartz family, a book is needed that gives complete details | | | Book (volume) | | Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill 0. Murphy...Geology, Missoula, MT; Carl Scott, Scott's Red Rose Quartz, Custer, SD; Sharon Skalko, The Amber Co., North... 15 Figure 6. Dallas Gem Mine in San Benito County, CA........................................... |  | | Book (edition) | | MISSOURI ILLINOIS • NORTH DAKOTA • OHIO • MICHIGAN • NEBRASKA • IOWA WISCONSIN Digitized by...and the Tourist Field includes SOUTH DAKOTA • MICHIGAN • ILLINOIS • IOWA WISCONSIN • OHIO • KANSAS •...Area Cycad .-' _ :. Oelrichs Agate Beds Rose Quartz Mine Northern Hill Gems 24 8 Jasper 25 Golden...40 North Dakota 43 Indiana . 45 Ohio 46 Michigan 50 Missouri 53 j- Kansas 5Q Iowa 60 -...matrix. Or you may visit the beach at Petoskey, Michigan, and find a stone glistening from the receding |  | | Report (volume) | | Archean system, or basement complex________________ Michigan and Wisconsin___ Central and eastern Minnesota...Wisconsin____________________ 338 Chippewa River and Barron County ___________ 338 Central Minnesota ______________________...to all that seems to be erroneous, but first to point out where there is harmony between the different...criticised, nor is any refutation attempted, unless the point at issue is fundamental and can not be overlooked...of this region is of special importance from the point of view of classification of the pre-Cambrian formations |
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