 | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...Hardness 7 Hardness 10 Quartz Diamond Diamond, Kimberley, South Africa * 0.5 x 0.5 x 0.5 cm | 19 MINERALS:...mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular...the minerals form in very thin sheets. from a central point like the spokes of awheel. |  | | Report (edition) | | (average 2 ct) from Ellendale diamond mine (courtesy Kimberley Diamond Company) Contents Abstract ....................................... 21 East Kimberley Diamond Province......................................................................... 21 Kimberley Basin............................................................................... 24 East Kimberley Diamond Province................................................................... 24 North Kimberley Diamond Province ............................ |  | | Report (edition) | | sphere, approximately 35 cm in diameter, contains a central lens of tiger eye up to 10 cm thick displaying....................................... 15 East Kimberley diamond province ........................................................................ 15 Kimberley Basin .............................................................................. 20 East Kimberley diamond province .................................................................. 20 North Kimberley diamond province ............................ |  | | Journal (issue) | | COVER: AQUAMARINE BERYL crystal, 9.5 cm, with schorl and feldspar, from the Erongo Mountains, Namibia...important assignment at the Shinkolobwe uranium mine. His supervisor was Johannes Vaes (1902–1978). Gilbert...districts including those in Southern Rhodesia (Zimbabwe) and Tsumeb, Southwest Africa (Namibia). He had...with his fabulous cuprites from the Mashamba West mine, Gilbert only hinted to a few people of his treasures...discovery of some of the finest Namibian aquamarine, schorl and jeremejevite ever seen. Other aesthetic species |  | | Journal (article/letter/editorial) | | from the massivesulfide depositsof the Kuroko district, Japan. Detailedgeochemical studiesindicatethat...dravite-schorl series. Numerousdescriptions existof the occurrenceof Fe-rich(commonly dravite-schorl) andLi-rich...andLi-rich (commonly schorl-elbaite)tourmalinesin granites,pegmatites,andaplites(e.g.,Clarke,1981). Thesetourmalines...associatedwith magmatic- developedat the Elizabeth mine, Vermont (Mchydrothermal phenomena including tin-tungsten...greisens(Hosking, 1951; Kelly and Rye, Black Hawk mine, Maine (LaPierre, 1977; Slack, 1979) andcopper-bearing |  | | Catalog/List | | MARCH/APRIL 2008 1) AGARDITE. Penberthy Crofts Mine, St Hilary, Cornwall. Ironstained quartz/gossan...50x40x20mm. £35. 2) APATITE and CASSITERITE. Golconda Mine, Governador Valadares, Minas Gerais, Brazil. A small...platey bertrandite xls of about 1mm. Associated with schorl, chlorite and a little purple fluorite. (Collected...£125. 7) CASSITERITE. Great Flat Lode, Dolcoath Mine, Cambome, Cornwall. Rich heavy chloritic veinstone...50x30x12mm. £15. 8) CASSITERITE and TOPAZ. Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Germany. The top | | | Catalog/List | | MARCH/APRIL 2008 1) AGARDITE. Penberthy Crofts Mine, St Hilary, Cornwall. Ironstained quartz/gossan...50x40x20mm. £35. 2) A PAT I T E and CASSITERITE. Golconda Mine, Governador Valadares, Minas Gerais, Brazil. A small...bertrandite xls of about lnun. Associated with schorl, chlorite and a little purple fluorite. (Collected...£125. 7) CASSITERITE. Great Flat Lode, Dolcoath Mine, Camborne, Cornwall. Rich heavy chloritic veinstone...1 2 m m . £15. 8) CASSITERITE and TOPAZ. Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Germany. The top |  | | Journal (article/letter/editorial) | | mainlybelongto twocommon solid-solution series: dravite-schorl and dravite-uvite. Ca- and Fe-rich feruvite and...(fromoldest toyoungest): (1)rareFe-rich dravite-schorl withinblacktourmalinite clasts in footwall fragmental...tourmalinite pipe);(3) recrystallized, Fe-richdravite-schorl (locally Ca-Feferuvite) in thetourmalinite pipe...Mg-richtourmaline rimswhichoccurondisseminated Fe-rich schorl in thebedded Pb-Zn-Ag ores.Thetimingof rareFe-richschorl...whichwereresponsible for formation of minorFe-richdravite-schorl which overprinted earlierdravite. Postore, butsynsedimentary |  | | Journal (article/letter/editorial) | | Mn enrichment, hydrothermal alteration, Sullivan mine, Pb-Zn-Ag deposit, British Columbia. Introduction...nature are Na- and Mg-rich dravite, Naand Fe-rich schorl, Ca- and Mg-rich uvite, and Naand Li-rich elbaite...largely to two common solid-solution series: (Na-Fe) schorl-(Na-Mg) dravite and (Na-Mg) dravite-(Ca-Mg) uvite....0 1.2 1.4 1.6 [] (X) + Al(y) Dravite (or Schorl) (X = Na) 5o Uvite (X = Ca) FIG. 1. Ternary...(or schorl), and uvite. Open circles represent alkalideficient tourmaline from the Sullivan mine (this |  | | Journal (issue) | | West Branch: I. Knight, F.G.A. South Yorkshire & District Branch: I. R. M. Lewis, F.G.A. Examiners: B. W...the black, non gemquality, ferrous iron, species, schorl. OCCURRENCE The elbaite locality is approximately...pegmatite containing microcline, quartz, muscovite, and schorl tourmaline, with minor garnet and biotite, through...the latter containing minor amounts of blueblack schorl, into a lithium-rich pegmatite containing clevelandite...clevelandite, quartz, muscovite, lepidolite, elbaite and schorl. Accessory minerals include cassiterite, columbite-tantalite |  | | Journal (article/letter/editorial) | | tourmaline from the shear-zone hosted Kimberley Au deposit in the Zimbabwe Craton. Their results demonstrate...0.005 0.131 0.869 0.994 0.876 0.147 4.000 0.507 Schorl 3.000 5.987 0.000 5.761 0.000 5.761 0.000 0.111...0.006 0.092 0.908 0.992 0.793 0.114 4.000 0.510 Schorl formulaa Calculated structural formulae based...the tourmaline samples lie compositionally on the schorl (end member NaFe3 Al6 (BO3 )3 (OH)3 OH)) to dravite...used to classify tourmaline compositions to the schorl-dravite solid solution. SEM imaging was undertaken |  | | Journal (article/letter/editorial) | | CONTENTS. PAGE Geology of the District around Edinburgh. By J. S. FLETT, M.A., D.Sc., LL.D., F.R.S.... By A. MACCONOCHIE Excursion to the Edinburgh District, August 1st to 9th, 19 13 Excursion to Harefield... L. LEACH, F.G.S. Excursion to the Nottingham District, May 9th to qth (Whitsuntide), 1913 The Pal:colithlc...Sun'. 5.-Geologicall\Iap of the Roslin and Polton District. Ceol. SU1l'. 6.-Vertical Section showing the...Barnstone. T. lV. Reader, photo ..• 12A.-Gypsum Mine, Cropwell Bishop. T. W, Reader,photo ... 12Il.-Fibrous |  | | Report (issue) | | weighed 455 kilograms. 2m: The Queen Anne mine in Zimbabwe has produced crystals up to 2 meters in length...near Sabsar, on the Gilgit to Skardu Road, Skardu district, Northern Areas, Pakistan. Collection Ty Lawrence;...and quartz; 15 cm from the Shigar Valley, Skardu district, Northern Areas, Pakistan Because it is associated...surprise. In 1997, Gary and Mary Freeman began to mine the Orchard pit, a then insignificant pegmatite...village of Mandrosonoro, in an undeve loped area of central west Madagascar. I first heard rumors of the place |  | | Journal (article/letter/editorial) | | NaR3A16B3Si6027(OH,F)4, where R is predominantly Fe 2+ in schorl, Mg in dravite, and (A1 + Li) in elbaite. Na may...massive-sulfide tourmalines fall mainly within the schorl-dravite solid solution series, with a tendency...typically have compositions intermediate between schorl and dravite (Ethier and Campbell 1977; Appel and...particular, two analyses of a sample from the Ore Knob mine, North Carolina (no. 11119/29), yield 6liB values...Elizabeth mine, Vermont Devonian(?) Amphibolite 1, 2 Cu, Zn, Ag Cu, Zn Elizabeth mine, Vermont Pike |  | | Journal (article/letter/editorial) | | (1803–1885) O ren Root spent his entire life in central New York. He was born in Vernon in 1803 and studied...formal geological surGeosciences Department vey of central New York. Hamilton College Vanuxem’s description...kimberlite after the great diamondproducing district of Kimberley, South Africa. Root’s importance to specimen...State, including the Rossie Lead mines, the Sterling mine, the wollastonite occurrence at Natural Bridge,...today. He was a charter member of the Capital District Mineral Club (Albany, New York) and in 1979 donated |  | | Journal (article/letter/editorial) | | volumetrically equivalent to partsof the BrokenHill district,N.S.W.,Australia. Structural analysis ofwell-exposed...or Mineral exploration conducted for tungstenin central moreof tourmaline; BatesandJackson, 1987)andzonesof...witha turbidires of the Kuiseb Formation in the central zone of numberoftypesofstrata-bound andstratiform...Miller,1983), withthenorthern central zone(stipple) andthesouthern central zone(shading) highlighted. Thickblack...profile andthickness ofNosib Group innorthern central zone (NCZ)taken from Corner's (1983) computer modelsection |  | | Journal (issue) | | City cuts right through the middle of the Mining District. (Continued on page 2) The Moravian Territorial...mineralpro@hotmail.com The Czech Republic, in central Europe, is a relatively small country (about 80...Chlorargyrite, on and impregnating Sandstone, Silver Reef District, Washington Co., UT, 6 x 5 x 3 cm. Author’s specimen...Sandstone. Figure 3: Geologic map of the Mining District showing the outcrops of the Springdale Sandstone...form the four reefs. I-15 cuts right through the district from the lower left to the upper right. Two cross |  | | Journal (article/letter/editorial) | | cassiterite, Russian ilvaite, Brazilian and Namibian schorl, Panasqueira ferberite, and rutile, especially...cavities in tourmaline from the Pelham asbestos mine (Emerson 1895). Other historical Massachusetts ...mining oiieration\ at Graves %lorintain, Georgia, hy mine superintendent Logan hIoore. It was subseqiiently...has been produced commercially from the Roseland district of Amherst and Nelson Counties. Excellent specimens...two peaks and later from a large open-pit kyanite mine that ultimately leveled most of the mountain. Today |  | | Journal (article/letter/editorial) | | localities -Wesselton, Sierra Leone, Angola and Kimberley. Cubic crystals from Bas Congo Katanga and Sierra...diamonds in the matrix from Barkly West, Dutoitspan, Kimberley, Namaqualand, Sierra Leone and Diamantina, Brazil...was on exhibit, those in the Kimberlite from Kimberley are as definitely of Post-Cretaceous age. Examples... D.Se. 16. TYPICAL MINERALS FROM THE ANHYDRITE MINE OF THE IMPERIAL CHEMICALS INDUSTRIES. LIMITED, AT...crystal of tourmaline and the radiate acicular schorl were impressive reproductions. These enlargements |  | | Journal (article/letter/editorial) | | quartz-and-muscovite crystal pocket under a thin veneer of mine dump. The nearly horizontal ledge was apparently...Early finds include several sharply crystallized schorl crystals (to 8 cm) and several hundred kilograms...(repaired). Additional finds are excellent terminated schorl crystals, including a fourling of parallel-growth...of the world’s largest diamond mine, the Argyle deposit at Kimberley, Western Australia; Argyle produced |  | | Journal (article/letter/editorial) | | LEACH, F .G .S. Excursio n to the N ott ingham District, May 9th t o q th (Whi tsun tide) , 191 3 The...«. S.-Geological Map of the Roslin and Polton District. Geoi. Suru, ... 6.-Vertical Section showing the...Limestone, Barnstone. T. W. Reader, photo... 12A.-Gypsum Mine, Cropwell Bishop. T. lV, Reader,photo ... 12B.-Fibrous...photo I.j.B.-Breccia at the base of the Permian, Kimberley. T. TV Reader, photo... iv 3+ H 40 40 40 40...Pit. Kaolinised Granite with abundant veins of Schorl Rock. T. C. F. Ha!!, photo 311J.-Carclaze China |  | | Journal (issue) | | rubellite crystal, 75 mm long, from the Cruzeiro mine, Minas Gérais, Brazil. See 'The location, geology...muscovite and milky quartz with some lepidolite, schorl and locally huge tabular crystals of spodumene...Non-pegmatitic deposits of tourmaline include the Brumado mine (Bahia) which produces fine red uvite crystals and...Laranjeira mine (Coronel Murta). Fig. 5. Trichites in a cut rubellite from the Laranjeira mine (Coronel...of the tourmalines from the Sâo José da Batalha mine (Paraiba). Fig. 9. Cat's-eye green tourmaline cabochon |  | | Journal (issue) | | Rhodonite, 4.7 cm, from the 1700 level, Zinc Corporation mine, Broken Hill, New South Wales, Australia. Collection...collection, John Chapman photo. • 2.5 cm, Top Camp mine, Western Ausytralia. George Stacey collection, Jeff...Scovil photo. Middle row from left: • 2.3 cm, Kintore mine, Coolgardie, Western Australia. Aloe Family collection;...in the newly discovered diamond fields around Kimberley, South Africa. His numerous reports and studies...spent the rest of their lives there as miners and mine captains. Cornish tradition favored the collecting |  | | Show/Event (guide) | | regional mineralogy, Minerals of the English Lake District: Caldbeck Fells, coauthored with Chris Stanley...3:30 P e g m a t i t e mineral discoveries from central Texas by F. Roberts, A. E. Smith, Jr., W. B. Simmons...of the Seerie Pegmatite, South Platte Pegmatite District, Jefferson County, Colorado by S. L. Hanson, W...n g of carrollite from the V.kl-arnoya South HI mine, Katanga, Democratic Republic of Congo by V. King...dissertation work on the Santa Eulalia Ag-Pb-Zn district in Chihuahua and carbonate replacement deposits |  | | Book | | cavity in Granulite, Photographed with Rusapi, Mashonaland. crossed nicols. X 15 diam. OF double refraction...coarse Granite, in Plagioclase Lomagundi, Mashonaland. nicols. X Crossed 15 diam. EFFECTS OF TWINNING...vents or fill- at numerous localities round Kimberley in Cape Colony, at Jagersfontein and other places...near Pretoria in the Transvaal, in the Bembezi district of Rhodesia, and near Bingara, New South Diamonds...clusions of the Newlands Mine, near Kimberley, and the Roberts-Victor Mine in the Orange A MANUAL OF |
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