 | | Report (volume) | | the ruby, sapphire, spinel, emerald, rutile, and quartz of gem quality have been synthesized. The best...stone has only one or two of these qualities. The diamond, emerald, ruby, and sapphire are considered precious...blue, rose, green, and true canary yellow in the diamond; pigeon-blood red in the ruby; cornflower blue...establishing the price of a gem stone. Such gems as the diamond and ruby are rare, in addition to being beautiful...Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding each mineral |  | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4. Fluorite 9.... 5. Apatite B). interesting to note that diamond, It is the Mohs' scale as 10, and more than twice...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 |  | | Journal (article/letter/editorial) | | collection, the work of fifty years,to the city of providence. The collection "The HoraceF. CarpenterCollection...CarpenterCollection.,' Twenty-five of the South African diamond crystals are shown. In connectionwith many of the...attractive polishedspecimelrof Madagascarrutilated quartz; a fine polished Lake Superioragate; a handsomeplate...largestof which is about 7 x 8 inches,from Strontian Island; babingtonitefrom Somerville,Mass.; cyanite,BuncombeCo...amethyst; amethyst crystals from Cumberland; fine transparent smoky quartz crystals, up to l x2rlinches in |  | | Report (volume) | | Bedrock Geology of Rhode Island o GEOLOGICAL 5. I 09 8* Ci PI O i o TJ i i I to & Ol BULLETIN...State of Rhode Island Development Council i M SURVEY I C.to 1295 Bedrock Geology of Rhode Island...1295 Prepared in cooperation with the State of Rhode Island Development Council Lithology, structure, and...geological studies in Rhode Island____._.________.-__.-_-____. Position of Rhode Island in the Appalachian...Schist___---_--_-____--__--_-_----_-_----_ Hunting Hill Greenstone_______________________________ Blackstone |  | | Book | | of Saratoga in Now York, by Doct. John H. Steel. county A (Steel.') 1822." (N. G.) " New Farmer and...perfect, and abundant, sometimes in very white quartz. Beryl, large crystals in graphic granite, also...Schorl, black, masses sometimes contain fragments of quartz, and feldspar. Feldspar, sometimes white, granular...granite and gneiss, ; limestone, with Granular Quartz ; it forms a stratified ruck of considerable extent...aggregate of feldspar, beautifully laminated, and quartz of a granular structure ; some 3 inches in length |  | | Report (volume) | | SCHISTS AND ASSOCIATED GRANITES AND PORPHYRIES OF RHODE ISLAND BENJAMIN K. EMERSON JOSEPH H. PERRY WASHINGTON.............. 18 Nonoccurrence of il vaite in Rhode Island.................. 19 Inclusion of limestone............................... 24 Beds west of Providence and Pawtucket ................... 25 Cranston...............'.................... Vein quartz at Diamond Hill.............................. "Warnsutta...the granite porphyry ...................... Blue-quartz-microcline porphyry .......................... |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...creek gravels and alluvial deposits, rare⎯Diamond. CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral...mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington, Virginia, Bedford, Jackson,...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...creek gravels and alluvial deposits, rare⎯Diamond. CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral...mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington, Virginia, Bedford, Jackson,...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...*D * D } '<&*=> 4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet __...symmetry of crystals, the spectacular glitter of diamond have evoked admiring gasps of soft pleasure....known Mohs' scale. (See Table from equal; the diamond, as this scale are far Mohs' Hardness Scale...with respect to one another. gem minerals The quartz gems, such as amethyst, form crystal prisms with |  | | Journal (article/letter/editorial) | | beautiful specimens are found of snowy-white drusy quartz which line cavities of gray chert. California—R...consisting of about 22 minerals of which garnet and quartz seem to be the most common. Along with the sand...(microcline, orthoc'ase, albite, oligoclase, anorthite), quartz, mica (biotite, muscovite) obsidian and gold??...examination not one jasper was found—they were all common quartz stp.'ned brown by limonite. Florida—At Daytona... Daytona Beach. Georgia—Specimens of rutilated quartz (clear auartz with hair-like crystals of rutile) |  | | Journal (issue) | | 1 1/2x2 $1.25, 2x2 $1.50, 2x3 $2.50 BROOKITE, QUARTZ, Magnet Cove. Ark. We selected these while we were...paramorphs after brookite. These on the corroded smoky quartz masses and crystals typical of the Magnet Cove...2x3 size @ $4.50 each. SMOKY QUARTZ CRYSTALS, Mex. Very fine and brilliant smoky Crystals of me dium to...geode halves showing light to medium amethyst and smoky amethyst crystals. 3" $3.50, 4" $6.50. Matching...crystal prisms in and on trans lucent to transparent quartz. Most speci mens showing many tourmaline xl prisms |  | | 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...landsvertebrate fossil remains; Pine Ridge, areaQuartz concretions, agates, petrified wood, fossils, etc |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...DEMCO 38-297 KEY 4& Diamond M Tourmaline fQl Ruby, O Sapphire Quartz crystal 'y^ Garnet —...and California; emerald in North Carolina, a big diamond or two in Arkansas, opal in Idaho, and so on. Old...Derbyshire or, perhaps, a pyramid of smoky quartz from Cumberland. The next it may be rock crystal from...The steps on this scale are far from equal; the diamond, for example, is rated on the scale as 10, but |  | | Journal (article/letter/editorial) | | Wasilla, Alaska. The black specimen is basanite (quartz). The other consists of dark red garnet and green...assortment of most interesting etched (frosted) quartz crystals. Here is a letter dated Dec. 26, 1961...desiring to obtain a specimen or two of this unusual quartz crystal are urged to rush their orders to Southwest...Murfreesboro (Pike Co.), Arkansas. Here, in the diamond mine, I found a beautiful blue barite crystal about...rock was a mixture of chlorite-feldspar with some quartz and magnetite. Sphene is ROCKS AND MINERALS not |  | | Journal (article/letter/editorial) | | amethyst; amethyst crystals from Cumberland; fine transparent smoky quartz crystals, up to l x2rlinches in...the dull gray of the usual Rhode Island agates,from Diamond Hill, Cumberland; attractive chalcopyrite with...with crystallized quartz, from Cumberland Hill; hornblende in a light-colored matrix from Pawtucket;...pyrite nodules and crystallized groups from Block Island. GEL MINERALS (COLLOID MINERALS) CYRII, W. GREENIAND |  | | Journal (article/letter/editorial) | | Roxbury, Maine, has written of their finding smoky quartz crystals, some as large as 5 x 6 inches, petals...petals of crandelite, some white on clear quartz crystal slabs, others brown, coated with marcasite or...Brown University, Providence, Rhode Island, whose topic was "Minerals of Rhode Island." Prof. Quinn's lively...with interesting mineral specimens from the Rhode Island area. Monroe L. Weiss, Sec. 65-30 108th St....meeting place, 85-01 118th Street, Richmond Hill, Long Island, N.Y., the following were elected to office: |  | | Book | | Fossil-Basilosaurus cetoides Gemstone-Star Blue Quartz Soil-Bama Series Mineral-Rhodochrosite Rock-Yule...* Arkansas Gem-Diamond * Florida Gem-Moonstone Stone-Agatized Coral Mineral-Quartz Crystal Soil-Myakka...Mineral-Gold Mineral-Staurolite Fossil-Shark Tooth Gem-Quartz 35 36 36 38 38 38 Rock-Serpentine * Hawaii ...New Hampshire Rock-Granite Mineral-Bery] Gem-Smoky Quartz 2B) 100 100 116 116 LI7 118 118 Gemstone-Sunstone... * Pennsylvania Fossil-Phacops rana 124 * Rhode Island Rock-Cumberlandite Mineral-Bowenite 125 125 |  | | Journal (article/letter/editorial) | | the old open pit Sodium Sulphate mine in Imperial County near BertROCKS AND MINERALS ram siding on the...appreciate a tip or two. "The crystals seem to form the diamond shape first, then additional crystals form on that...pocket was lined with feldspar, and smoky quartz xls—the quartz xls are of good gem quality on the inside...a secondary crystallization set in forming the quartz and goethite which produced the onegite. Also running...running through the mass was chalcedony-looking quartz which sometimes pointed up into terminations around |  | | Book | | Catalog Card Number: 74-1276 The pictures of gold-in-quartz, smithsonite, stilbite, and wulfenite on the front...learn that gravel beds are rich in such minerals as quartz, feldspar, mica, garnet, tourmaline, magnetite...Schists often contain feldspar, garnet, mica and quartz. With sapphires are often found associated an abundance...oxide. Chalcedony, one of the common varieties of quartz, was formed in the same way. Pegmatites and Hematites...contains as its principal com¬ ponents feldspar, quartz and mica it is known as pegmatite. Most of our |  | | Report (volume) | | Deposits of minerals of wide distribution, such as quartz and calcite, have been omitted, except those that...North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G. Leonard, Grand Forks...Florence Bascom, Bryn Mawr. Rhode Island.... .Prof. Charles W. Brown, Providence. South Carolina.. .Dr. Earle...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |  | | Journal (article/letter/editorial) | | fairly nice specimens in an old road bed in Lee County, Alabama, about 10 miles north of Auburn, Ala...."Still another mineral has come to light at Collins Hill (near Portland, Middlesex Co.), Conn, (see my article...malachite is usually present as an alteration. Quartz veins, traversing the Glastonbury gneiss, are liable...three places—including the vicinity of this Collins Hill malachite occurrence. A green coating on pegmatite...of Milledgeville who discovered them in Baldwin County, Ga., between the State Sanitarium and Oconee River |  | | 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...may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey topographic...grained granite rugated cardboard where of the quartz t it hits your ribs; then layer of newspaper... with geodes lined with glittering calcite or quartz Often these can be California, in in Southwestern |  | | Journal (article/letter/editorial) | | Maryland 20850; the non-competitive by Mr. Edward W. Hill, 7209 - 13th Place, Takoma Park, Maryland 20012... South Africa. This film shows the story of a diamond from the South African mine, through all the steps...Hanover County. A beautiful clear moonstone is found at this locality, as well as mica, quartz (milky)...(milky), asteriated quartz, albite, and tiny purple garnets in mica schist. The Shenandoah Valley Gem and Mineral...bound volume of a complete set of maps of every county of Virginia. A slide program narrated by Dick May |  | | Report (issue) | | Ashaway and Voluntovm. quadrangles, Connecticut-Rhode Island by Tomas Feininger U.i S. Geological Survey... Muscovitic facies ................ Escoheag Quartz Diorite Gneiss Fine-grained facies 58 59 64 ...Porphyritic granite gneiss ............. 71 Potter Hill Granite Gneiss ............. 77 Massive facies............. . . HI Aplite, pegmatite, and vein quartz Mafic dikes Petrogenesis ......... 116 .......158 Mechanism of intrusion ................ 162 Quartz-sillimanite anc. q;^r\,£-sillimanite--muscovite |  | | Journal (issue) | | ROCKS AND MMiRALS Mineraloqy RUTILE IN QUARTZ Minas Geraes, Brazil Anthony J. Di Donato Collection...GALENA CRYSTALS, BARITE CRYSTALS, CALCITE CRYSTALS, QUARTZ CRYSTALS ETC. EACH PIECE TRIMMED AND SELECTED FOR...headed northward towards the gold mine in York County. It was a most enjoyable trip, the mine was reached...slender, lus trous rutile crystals in colorless quartz. The specimen was found in Minas Geraes, Brazil...Rd., Ardsley, N.Y. Chairman—Gene Jacob, 10 Beacon Hill Rd., Ardsley, N. Y. Oct. 2. 3. 1965—Topeka Gem & |
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