 | | Report (issue) | | A note on newly discovered kimberlites in Riley County, Kansas William L. Mansker, Bill D. Richards, and...petrography of the Twin Knobs ttl lamproite, Pike County, Arkansas . 205 Michael A. Waldman, Tom E. McCandless...McCandless, and Hugo T. Dummett The Cretaceous Arkansas alkalic province; A summary of petrology and geochemistry...Potash Sulfur Springs igneous complex, Garland County, Arkansas Robert E. Zartman and J. Michael Howard .... 235 Isotopic relationships in Arkansas Cretaceous alkalic complexes . 241 G. R. Tilton, Sung Tack |  | | Report (edition) | | STATE OF ARKANSAS BULLETIN 23 MINERAL SPECIES OF ARKANSAS A DIGEST By J. Michael Howard 1987 Revised...Little Rock ARKANSAS GEOLOGICAL COMMISSION Norman F. Williams State Geologist STATE OF ARKANSAS BULLETIN...SPECIES OF ARKANSAS A DIGEST By J. Michael Howard 1987 Revised 2007 Little Rock ARKANSAS GEOLOGICAL...Williams State Geologist STATE OF ARKANSAS Bill Clinton, Governor ARKANSAS GEOLOGICAL COMMISSION Norman F...three-day trip to the Little Rock, Hot Springs, and Magnet Cove areas of Arkansas. The trip was conducted by |  | | Other Paper | | MAGNET COVE, HOT SPRING COUNTY, ARKANSAS: COLLECTOR AND PROFESSIONAL OBSERVATIONS, STORIES AND PHOTOGRAPHS...Jr. and J. Michael Howard MAGNET COVE, HOT SPRING COUNTY, ARKANSAS: COLLECTOR AND PROFESSIONAL OBSERVATIONS...Michael Howard 16001 Vimy Woods Road Mabelvale, Arkansas 72103 E-mail: jmichaelhoward@sbcglobal.net ©...Additional Magnet Cove Mineral Occurrences……………………………… 49 Part 2 – Minerals of Magnet Cove, Hot Spring County...County, Arkansas and Vicinity……………………..... 49 Part 3 – Briefs of the Important Mineral Locations of Magnet |  | | Journal (issue) | | News, P.O. Box 2043, Coeur d'Alene, ID 83816-2043 USA Phone: 208-664-2448 E-mail: lream@comtch.iea.com...http://www.iea.com/-lream Web address change for Arkansas site A few months ago, the Mineral News ran a...informed me that there is a new address for the Arkansas Rockhound: http://RockhoundingAR.com Tax time...blast!G> Collecting Arkansas Minerals By Arthur E. Smith, Jr. The only book on Arkansas Minerals: 149 pages... area where most Arkansas minerals occur, with most quartz, localities, Magnet Cove., etc., only $14 |  | | Book | | Collecting Arkansas JVlinerals A Reference and Guide By Arthur E. Smith, Jr. ,'T Collecting Arkansas...Box 2043 Coeur d’Alene, Idaho 83816-2043 iii Arkansas Counties 1 \ I •( 11 o •« c »««ou cxi ju4«iO«J...r r 1 0WH4T «MII( ' I I ►UCAJ4I s;r_ I HOT tAAIHC SCVICA I CA A *T I JCffCASO* ' *«< AHS...573-308-3500 703-648-6045 or phone 800-USA-MAPS Map 3. Arkansas’ Ouachita Mountains 7.5 Minute Quadrangal...Quadrangal Map index. V Contents and Locality Index Arkansas Quartz Crystal Deposits Special Quartz Types. |  | | Journal (article/letter/editorial) | | crystals, Arkansas also boasts an array of other minerals, as evidenced by this county-by-county description...minerals of Magnet Cove, continued with mining in north ern and western Arkansas and Magnet Cove during the...throughout the state and extensive collecting in Magnet Cove. In the 1900s, mining and minerals continue to...in full swing and the demand for and price of Arkansas quartz crystals has skyrocketed. In October 1987...exploited. Continued interest in and study of Arkansas minerals, par ticularly the microminerals, will |  | | Report (edition) | | STATE OF ARKANSAS BULLETIN 23 S P EC I ES O F A RKA N SA A DIGEST By J. Michael Howard \ 1987... / ARKANSAS GEOLOGICAL COMMISSION Norman F. Williams State Geologist s·' , STATE OF ARKANSAS BULLETIN...23 SPECIES OF ARKANSAS A DIGEST By J. Michael Howard 1987 Little Rock ARKANSAS GEOLOGICAL COMMISSION...State Geologist STATE OF ARKANSAS Bill Clinton, Governor ARKANSAS GEOLOGICAL COMMISSION Norman...field trip to the Little Rock, Hot Springs, and Magnet Cove areas of Arkansas. The trip was conducted by |  | | Journal (article/letter/editorial) | | photo. March/April: Quartz, Middleville, Herkimer County, New York. John C. Medici specimen and photo. May/June:...May/June: Turgite, Graves Mountain, Lincoln County, Georgia. Ronald E. Bentley specimen and photo. July/August:...deLinde No. 4 mine, High Peak, Montgomery County, Arkansas. Private collection; Ronald E. Bentley photo...photo. September/October: Barite, Otero County, Colorado. Dan and Dianne Kile specimen; John Muntyan photo...Wilson. W. E. Wilson photo. Acmite, Arkansas, 304, 321 Aenigmatite, Arkansas, 306 Alabama, volkovskite, 472 |  | | Journal (article/letter/editorial) | | Crystals from the KIMZEY CALCITE QUARRY Magnet Cove, Arkansas Downloaded by [University of California...END of the Ouachita Mountains in central Arkansas, Magnet Cove has been a mineral collecting locality for...the contact metamorphic and altered rocks give Magnet Cove a variety of diverse collecting localities. The...portion of Magnet Cove, just north of State Highway 54 and northwest of its bridge over Cove Creek. Landes... Meurer et al. (1989) describe minute euhedral spinel that is typically twinned and included in fluorapatite |  | | Journal (article/letter/editorial) | | 40506-0053, USA Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA b Received...measured for carbonatites from Oka (Canada), Magnet Cove (USA), Jacupiranga (Brazil), and Essonville (Canada)...(745 – 770 jC) and Cc – Mnt fractionations from Magnet Cove (700 and 760 jC). Cc – Mt temperatures for very...Survey, MS 973, Denver Federal Center, Denver, CO, USA. magmas. Field evidence (Dawson, 1962, 1989) and...from three wellknown carbonatite localities (Magnet Cove, USA; Oka, Canada; and Jacupiranga, Brazil), and |  | | Journal (article/letter/editorial) | | Prairie Creek Diamond-Bearing Kimberlite Diatreme, Arkansas Subbarayudu V. Gogineni, Charles E. Melton 1,...Athens, GA 30602, USA 2 Department of Geology, University of Georgia, Athens, GA 30602, USA Abstract. Based...diatreme situated 4 km SSE of Murfreesboro, Pike County, Arkansas, are classified as micaceous kimberlite. The...diatreme, situated 4 km SSE of Murfreesboro, Pike County, Arkansas, has been known since 1842 when it was first...Gogineni et al. : Prairie-Creek Kimberlite Diatreme, Arkansas 2. Nomenclature and Geology methods. Individual |  | | Report (issue) | | On {111} as both twin and composition plane, the spinel law, as contact twins. Physical Properties: Cleavage:...Mineral Group: Forms a series with magnetite. Spinel group. Occurrence: Most commonly of fumarolic...In the USA, from the Crestmore quarry, Riverside Co., California and at Magnet Cove, Hot Spring Co., Arkansas...Arkansas. Abundant at Långban, Värmland, Sweden. In Russia, from mines around Kopeysk, Chelyabinsk |  | | Journal (article/letter/editorial) | | Hydrothermal Inclusions in Carbonatite of the Magnet Cove Complex, Arkansas \ Bruce E. Nesbitt and William C. Kelly...U.S.A. Abstract. The carbonatite at Magnet Cove, Arkansas, USA contains a great variety and abundance...complex. Numerous secondary inclusions in the Magnet Cove calcite contain an intriguing variety of daughter...Introduction The carbonatite in the Magnet Cove Complex of central Arkansas contains a variety of magmatic...once-fluid inclusions of the quality seen in Magnet Cove minerals. A survey of 150 polished inclusion |  | | Report (issue) | | Powder Pattern: San Bernardino Co., California, USA. 2.666 (100), 3.637 (40), 2.586 (40), 4.185 (35)...100.00 (1) Crestmore, California, USA. (2) Cascade Lake, New York, USA; by electron microprobe. (3) CaMgSiO...rarely in kimberlites. Association: Gehlenite, spinel, calcite, merwinite, º akermanite, vesuvianite...Scawt Hill, near Larne, Co. Antrim, Ireland. In the USA, at Crestmore, Riverside Co., California; on Cascade...Mountain, Essex Co., New York; at Magnet Cove, Hot Spring Co., Arkansas. In Canada, at Isle Cadieux and |  | | Journal (article/letter/editorial) | | DECBMBER. 1935 MOI.{TICELLITE FROM SAN BERNARDINO COUNTY, CALIFORNIA. AND THE MONTICELLITE SERIES War-neuen...Dewey mine, Ivanpah Quadrangle, San Bernardino County, California, proved on analysis to be the purest...California (Dewey mine and Crestmore) and from Magnet Cove, Arkansas, 815 816 TH E AM ERICAN MINERA LOGIST...Dewey mine, Clark Mt. district, San Bernardino County, California, in the Ivanpah quadrangle, was collected...carbonate. Black granular massesand small octahedra of spinel (z:1.733) and pink garnet (n:1.736 indicating grossularite) |  | | Report (issue) | | Association: Vesuvianite, chlorite, epidote, spinel, calcite, dolomite, magnetite. Distribution: Widespread;...Sineretschenskoje, north of Vladivostock. In the USA, from Stanley Butte, Graham Co., Arizona; on Garnet...Hill, Sussex Co., New Jersey; from Magnet Cove, Hot Spring Co., Arkansas; and on Prince of Wales Island, |  | | Journal (issue) | | Springs, Colorado 8124 2 USA Phone: 719-539-4113 • Fax 719-539-454 2 SPRING 2003 MATRIX: A Journal...the Ropes Gold Mine. Near Ishpeming. Marquette County, Michigan 3 by Michael P. Basal HISTORIC MINERAL...21 HISTORIC MINERAL FEATURE Collecting in Magnet Cove: Letters from Clyde Hardin by Arthur S111irh...gold nugget from Lhe Ropes Gold Mine, Marquette County, Michigan. The specimen measures I .5x2.5 cm .... Photo by Jeff Scovil. See story. page 3. 1 SPRING 2003 " MATRI: • 2 EDITORIAL A MATRIX Update: |  | Braunger, Simon, Marks, Michael A.W., Wenzel, Thomas, Chmyz, Luanna, Guitarrari Azzone, Rogério, Markl, Gregor (2020) Do carbonatites and alkaline rocks reflect variable redox conditions in their upper mantle source?. Earth and Planetary Science Letters, 533. 116041 doi:10.1016/j.epsl.2019.116041 | Journal (article/letter/editorial) | | (Kaiserstuhl, Sokli, Kovdor, Palabora, Oka, Magnet Cove, Jacupiranga), together with a world-wide comparison...Africa Rift); mixed examples exist as well (e.g., Magnet Cove, Kaiserstuhl). Based on the associated silicate...complexes (Kaiserstuhl, Sokli, Kovdor, Palabora, Magnet Cove, Oka, Jacupiranga) that constrain redox conditions...Africa (Palabora, South Africa), North America (Magnet Cove, USA; Oka, Canada) and South America (Jacupiranga...Irregular ilmenite patches and variably shaped spinel grains (Fig. 1c) occur as exsolutions in magnetite |  | | Book (edition) | | field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although his final results...decade. In the United States these include Magnet Cove, Arkansas (Erickson and Blade, 1963), Iron Hill, Colorado...carbonate-rich rocks that might have originated from a hot carbonatitic fluid genetically derived through some...include all those carbonate-rich deposits formed from hot fluids” —a useful extension. ° Thus, for descriptive...South Africa; Chilwa Island, N yasaland; Magnet Cove, Arkansas. In some cases the ring complex is arcuate |  | | Journal (article/letter/editorial) | | correct ratio for magnetite and other members of the spinel group. I t is, of course, unlikely that the t i...regarded as replacing F%O 8 the ratio became a normal spinel ratio. I n all such cases, however, the question...~811}, which is rare in magnetite, occurs also in spinel and other members of the group, including gahnlte...chromite. I t is very well developed in some of the spinel crystals fi'om Amity and Monroe in :New York State...to the fact that magnetite crystals from Magnet Cove, Arkansas, also exhibited the combination {111}, {311} | | | Journal (article/letter/editorial) | | correct ratio for magnetite and other members of the spinel group. I t is, of course, unlikely that the t i...regarded as replacing F%O 8 the ratio became a normal spinel ratio. I n all such cases, however, the question...~811}, which is rare in magnetite, occurs also in spinel and other members of the group, including gahnlte...chromite. I t is very well developed in some of the spinel crystals fi'om Amity and Monroe in :New York State...to the fact that magnetite crystals from Magnet Cove, Arkansas, also exhibited the combination {111}, {311} |  | | Journal (article/letter/editorial) | | Southwest orebody, White Pine mine, Ontonagon County, Michigan. Lance Hampel specimen, Jeff Scovil photo...Sphalerite with pyrite and calcite, Portland mine, Ouray County, Colorado. Barbara Muntyan specimen, Jeff Scovil...Novemberficember: Gold, Ten Mile district, Humboldt County, Nevada. Coogan Gold specimen, Jeff Scovil photo...Paramorphs after Brookite, and Rutile Twins from Magnet Cove, Arkansas, J. M. Howard, 92-102 Buchholz, T., Minerals...Minerals of a Wausau Pegmatite, Marathon County, Wisconsin, 254-58; see Ibenty-Fifth Rochester Mineralogical |  | | Catalog/List | | Clinton, Magnetite, Essex Co., 7. Quartz Crystal, Arkansas. 8. Milky Quartz, 9. Smoky Quartz, N. Y....and of attracted a will attract magnet by a is and is magnet retained by possessed by iron ... magnetic steel, a when variety of natural magnet. Brown or Iron Ore, submetallic, black, yellow-brown...flexed wire native (22). graphite same but is spring into are position again they as exceedingly...N. Springs, Col. Maine. gray, Berks Agate, Hot Penn. Co., Quartz, Bowdoin, Germany. oxide, |  | | Journal (article/letter/editorial) | | perovskite from kimberlite (Iron Hill, Wyoming, USA) and carbonatite (Prairie Lake, Ontario, Canada)...developed in feldspathoid syenites at Magnet Cove in Arkansas (Evans et al. 1986), and Khibiny and Kovdor...spectrometry (EDS): kimberlite from Iron Mountain (Wyoming, USA), calcite carbonatites from Prairie Lake (northwestern...Josephine Creek, Oregon, USA Diamond Jo quarry, Magnet Cove, Arkansas, USA Kerimasi, northern Tanzania...ultramafic rocks (Kas) Iron Mountain, Wyoming, USA Late hydrothermal minerals; associated with perovskite |  | | Report (issue) | | On {Ill} as both twin and composition plane, the spinel law, as contact twins, flattened, lamellar . ....(1) Lovers Pit, Mineville, Essex Co., New York, USA. (2) Meier's Find, Western Australia; by electron...series, with jacobsite, and with magnesioferrite. Spinel group. Occurrence: A common accessory mineral...Greenland. From Bancroft, Ontario, Canada. In the USA, around Lake Sanford, Essex Co., and in the Tilly...Brewster, Putnam Co., New York; at Magnet Cove, Hot Springs Co., Arkansas; in the Iron Springs district, |
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Magnet Cove, Hot Spring County, Arkansas, USA