 | | Journal (article/letter/editorial) | | VIRGINIA MINERAL LOCAL INDEX Although perhaps best known for its turquoise crystals, apophyllite on...kyanite, Virginia has, in fact, over 150 mineral species. and D. A L L E N P E N I C K , JR. Virginia Division...Mineral Resources P. O. Box 3667 Charlottesville, Virginia 22903 T H I S V I R G I N I A M I N E R A L L...world-wide locality index. The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R . V . Dietrich. A l |  | | Journal (issue) | | February 1987 No.1 VIRGINIA MINERAL LOCALITY INDEX D. Allen Penick, Jr. This Virginia mineral locality...world-wide locality index The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R. V. Dietrich. Although...of the index. Some of the famous localities in Virginia, such Updated from Rocks and Minerals, Vol. 60...pegmatite in Amelia County and the Lynch Station locality (turquoise crystals) in Campbell County, are now closed |  | | Journal (article/letter/editorial) | | from Virginia by RICHARD S. MITCHELL Clark Hall University of Virginia Charlottesville, Virginia 22903...same county. I t also has been observed i n pegmatites i n Powhatan County, Spotsylvania County, and...world have specimens of allanite from Amherst County, Virginia. The mineral is usually black and is coated...radioactive. The mineral was reported in Amherst County as early as 1874. Mallet ( 1 8 7 7 ) first described...Specimens from the Rutherford pegmatites, in Amelia County, are famous for the per fection of their thin |  | | Journal (issue) | | DECORATIVE-ORNAMENTAL STONES OF VIRGINIA D. Allen Penick, Jr. Virginia is noted particularly for beautiful...amazonite, fine moonstone, and topaz. In addition Virginia is well known for staurolite, prehnite, turquoise...minerals, rocks and organic materials found in Virginia, which have been used as gemstones and decora...report. Many of the localities will be familiar to Virginia mineral collectors. Someof the areas mentioned...collect minerals. There has been much written on Virginia mineral localities but no reports are available |  | | Report (issue) | | PISTOLS v the cover—Turquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 *... © R. V. Dietrich and the Research Division of Virginia Polytechnic Institute, 1970 Printed and bound |  | | Report (volume) | | the James River-Roanoke River Manganese District Virginia GEOLOGICAL SURVEY BULLETIN 1008 Geology...oftheJatnes River-Roanoke River Manganese District Virginia By GILBERT H. ESPENSHADE GEOLOGICAL SURVEY ...____________ __________ ___________ Schoolhouse mine and nearby prospects_ _ _ ______ __ _______ StonewalL___...property_____________________________________ Campbell County__________________________________________...________________ Prospects between Joshua Creek mine and Old Tavern prospect________________________ |  | | Journal (issue) | | the Virginia Polytechnic Institute, Engineering Experiment Station Series, dealing with Virginia Mineral...Mineral Localities: Virginia Mineral Localities (1960 Edition) Virginia Mineral Localities (Supplement...(Supplement I) Virginia Mineral Localities (Supplement II) Virginia Minerals and Rocks (3rd Edition) Ex LIBRIS...THE ·, I !V I ii VIRGINIA POLYTECHNIC INSTITUTE Engineering Experiment Station Series No. 151 Ii ... !I ·1 " ii :c H I I I I ! VIRGINIA MINERAL LOCALITIES ( SUPPLEMENT II ) By Richard V. Dietrich |  | | Journal (article/letter/editorial) | | This article was downloaded by: [Virginia Tech Libraries] On: 13 March 2015, At: 21:11 Publisher: Taylor...Sivtsov, and V. V. Berezovskaya Downloaded by [Virginia Tech Libraries] at 21:11 13 March 2015 Translated...11 ] ; 9-after Transolet [16]. Downloaded by [Virginia Tech Libraries] at 21:11 13 March 2015 In agreement...Richelsdorf, West Germany. 349 Downloaded by [Virginia Tech Libraries] at 21:11 13 March 2015 INTERNATIONAL...to 3.30% Li 2 O. In some samples (Gloucester, Bishop, Stanislavov), the sum of the formula coef ficients |  | | Journal (issue) | | SHOW Featuring Virginia Minerals, Mines and Localities BE A PROSPECTOR VISIT OUR MINE-KEEP WHAT YOU FIND...14,1977 VIRGINIA BEACH CIVIC CENTER (THE DOME) 19TH AND PACIFIC AVENUE VIRGINIA BEACH, VIRGINIA Rocks&...Minerals from Virginia Richard S. Mitchell 230 Mineral and Fossil Collecting Sites in Virginia Palmer C....Resume: Pseudomorphs in Virginia R. V. Dietrich 244 The Geology of Virginia W. Cullen Sherwood 250 Prehnite—Apophyllite...Minerals of Virginia J. Alexander Speer Minerals from the Old Sulphur Mine, Louisa County, Virginia Richard |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...townships of Washington, Virginia, Bedford, Jackson, Jefferson, Bethlehem, Monroe and Clark; on regional...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...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...townships of Washington, Virginia, Bedford, Jackson, Jefferson, Bethlehem, Monroe and Clark; on regional...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 |  | | Journal (article/letter/editorial) | | mined extensively from 1922 to the late 1980s at Bishop, Lohatlha and Gloucester in the central part of...partridgeite* bixbyite manganite roman6chite cryptomelane manganomelane** lithiophorite pyrolusite ramsdellite...distinguished in this group namely manjiroite (Na-rich), cryptomelane (Krich), coronadite (Pb-rich) and roman~chite...Bixbyite Pyrolusite Ramsdellite Lithiophorite Cryptomelane Roman~chite Wad l Diaspore I ] I i O...Supergene manganese oxides such as roman~chite, cryptomelane, lithiophorite and pyrolusite formed at this |  | | Journal (article/letter/editorial) | | deweyite and uvarovite. Other Pennsylvania, Maryland, Virginia and District of Columbia Clubs like the fossil...good hunting. Down Virginia way from the Staunton State Park to Altavista (Bishop Mine) the hunting is for...Waynesboro, Route 702, South River Mine (Kelly Bank), Augusta — Rockbridge County, the minerals to be found are...are pyrolusite, manganite, psilomelane, cryptomelane, goethite, hematite, cacoxenite, weinschenkite,...608 to Old Coal Mine ROCKS AND MINERALS Road to Cold Springs Clay Mine, Augusta County can be found kaolinite |  | Bonnet, Nicolas J., Beauvais, Anicet, Arnaud, Nicolas, Chardon, Dominique, Jayananda, Mudlappa (2014) First 40Ar/39Ar dating of intense Late Palaeogene lateritic weathering in Peninsular India. Earth and Planetary Science Letters, 386. 126-137 doi:10.1016/j.epsl.2013.11.002 | Journal (article/letter/editorial) | | Marty Keywords: 40 Ar/39 Ar radiometric dating cryptomelane supergene Mn-ore deposits lateritic paleolandsurface...lacking. We present 40 Ar/39 Ar ages of supergene cryptomelane (K–Mn oxide) formed in the Sandur Mn ore deposits...tunnel-structure of the hollandite manganese oxide group. Cryptomelane belongs to this III group with the general stoichiometric...Shevaroy. Post and Burnham, 1986; Pasero, 2005). Cryptomelane is a major Mn oxide of many lateritic Mn-ore...The high radiogenic 40 Ar retentive power of cryptomelane makes this mineral a suitable chronometer for |  | | Journal (article/letter/editorial) | | AKHTER (S. M.), see QAISER(M. A.), 735. Alaer6n mine, Copiap6, Chile, arsenolamprite, 732. Ala di Stura... 4r4. Amblygonite mine, Caceres, Spain, montebrasite, 414. Amelia County, Virginia, albite, I56; - -...meteorite, 898; - - and SMITh (P. L.), The Weekeroo Station meteorite, 67o; - - and YARDLEY (E. D.), The Brenham...from Mull and Morvern, 934. Bala Durga Gourishankar mine, Tummalatalupur, Nellore, India, microcline perthite...Crystallization of anorthite, 78o. Bhavani Sankar mine, Tummalatalupur, Nellore, lndia, muscovite, I4O |  | | Journal (article/letter/editorial) | | 1982] (~ Copyright the Mineralogical Society A. C. BISHOP A. G. COUP~R Department of Mineralogy, British...colloids. Occurrences of skeletal crystals in dense cryptomelane were more difficult to explain. Recently further...further occurrences of braunite and cryptomelane showing chevron layering have been noted and examined...grey cryptomelane, and it commonly occurs as parallel, tabular layers alternating with cryptomelane, and...fortification structure of braunite (dark grey) and cryptomelane (pale grey). Reflected light ( x 300). 507 |  | | Journal (article/letter/editorial) | | P. Jarosite, alunite and manganese minerals (cryptomelane, psilomelane and manjiorite) are supergene secondary...negative Y anomalies. The mineralogy (goethite and cryptomelane) along with the geochemistry (Si vs. Al; As+Cu+Mo+...filling late diagenetic cracks in Fe-oolites. Cryptomelane forms centimeter sized nodules in the subunit...Fe-oxyhydroxides in the oolitic ironstone layer. Cryptomelane [K (Mn74+, Mn3+) O16] is the main Mn-oxide mineral...Serna et al., 1986; Drouet and Navrotsky, 2003; Bishop and Murad, 2005; Swayze et al., 2008). The fundamental |  | | Book (edition) | | Wu!fenite. Red Cloud mine, Si/County, Arizona. Smithsonian Institution...District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St. Anthony Mine, Tiger, Pinal...Pinal County 78 Uranium and Vanadium Deposits 80 Monument Valley 81 - • Vll The Cameron Area 85 Breccia...Breccia Pipes 87 Pegmatites 88 "Mine Fire" Minerals, United Verde Mine, Jerome Arizona Meteorites PART... Apache County 435 Cochise County 436 Coconino County 437,438 Gila County 439 Graham County 440 Greenlee |  | | Journal (article/letter/editorial) | | A the bulkof the ore reserves andwasminedat the Bishop, detailed discussion ofthemineralchemistry ofthemanganese...whereas attheLohat- quartzcrystals (Fig.6B, C). lha mine,lenticular bodiesof braunitcmaybe presentin High-grade...origin.Advanced hematitegrainsarepreserved in cryptomelane-romanechite textures in mostofthesebeds.Anastomosing...Siliceous Manganese OreandWolhaarkop ChertBreccia Type Mine No. Siliceous ore BEE 212 Wolhaarkop breccia ...bixbyite-rich ores Finecrystalline beddedores Mine PAL PAL PAL PAL GLO GLO LOH BIS BIS GLO |  | | Report (issue) | | Statement Psilomelane Hollandite Coronadite Cryptomelane Geothite Gangue Minerals Paragenesis Ore Mineral...l e of 2 0 0 feet t o the inch of the principal mine areas were made. c ". Samples of the area-minerals...obtained from an exploration hole drilled at the Tower mine for the Mountain Copper Mining Company. Previous...River five miles to the east. Numerous ranch and mine roads make most of the district readily accessible...of the gover.ment purchasing programs, only one mine was able to remain,in operation. In 1970 it also | | | Book (edition) | | Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St. Anthony Mine, Tiger, Pinal...Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78 il S: The Cameron Area 85...Breccia Pipes 87 Pegmatites 88 “Mine Fire” Minerals, United Verde Mine, Jerome Arizona Meteorites 93 PART...Apache County — 435 Cochise County 436 Coconino County 437, 438 Gila County 439 Graham County Greenlee |  | | Journal (issue) | | green pharmacosiderite occurs in a goethite, cryptomelane and pyrolusite impregnated quartz vein ,or veins...stream sediment survey of the area around Carrock Mine (Appleton and Wadge, 1976) shows three, roughly...fine-grained matrix of either pyrolusite or cryptomelane. The cavities and clefts are, more or less,...manganese oxide (pyrolusite, romanechite and cryptomelane) occur. It is in these cavities that the pharmacosiderite...velvety cryptomelane and other supergene minerals are found. Some of the goethite and cryptomelane exhibits |  | | Book | | Components 2.2.1.9. K-Ar Age of the Mn Oxyhydroxide (Cryptomelane) Ores 2.2.1.1 O. Problem of Genesis 2.2.1.11...Features 3.3.2.2. The Main Manganese Deposits: Bishop, Lohatlha, Glosam, and Kapstewel, Postmasburg Region...composition of ores: Mn oxyhydroxides (pyrolusite, cryptomelane, 10 A-manganates, etc.) - manganite + Ca rhodochrosite-...unambiguous use of such widespread mineral names as cryptomelane, ramsdellite, lithiophorite, rancieite, nsutite...Boulder-Iumpy accumulations of Mn oxyhydroxides (cryptomelane, pyrolusite), higher up ; 3. Mottled ferruginous |  | | Journal (article/letter/editorial) | | Occurrence in Carroll County, Georgia" (November/December 1988). Banks County 184 ROCKS & MINERALS...Bentley provided many of the photographs. Baldwin County Milledgeville district—between the State Sanitarium...pit—east of S.R. 243 near the Baldwin-Wilkerson County line: kaolinite (Martin and Stafford, 1972). Cheatham...property—Route 3, Commerce, 4.8 km from the Jackson County line, 8 km east of Commerce on S.R. 59, and 0.8...Calgary] at 09:55 07 August 2017 Barrow County Arnold mine—1.6 km northeast of Statham, near the head |  | | Journal (article/letter/editorial) | | 1982] (~ Copyright the Mineralogical Society A. C. BISHOP A. G. COUP~R Department of Mineralogy, British...colloids. Occurrences of skeletal crystals in dense cryptomelane were more difficult to explain. Recently further...further occurrences of braunite and cryptomelane showing chevron layering have been noted and examined...grey cryptomelane, and it commonly occurs as parallel, tabular layers alternating with cryptomelane, and...fortification structure of braunite (dark grey) and cryptomelane (pale grey). Reflected light ( x 300). |
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