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| Locality: The Clara mine, central Black Forest, Germany. Occurrence: Associated minerals are: barite, quartz...the Ce- and AsO4-dominant member of the mixite group. Name: Reflects the relationship to the other members...presumably similar to other members of the hulsite group. Optical data: Biaxial (+), ' 1.78, 1.782 (calc...to other species: It is a member of the hulsite group. Name: Reflects the composition and relationship...Alumino-magnesiohulsite, a new member of the hulsite group, in kotoite marble from east of Verkhoyansk, Sakha–Yakutia |
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| OHCI ALABANDITE Mn S ALAMOSITE Pb SiO/3 ALBITE Feldspar ALLANITE Ce Ce Ca Y Al Fe SiO ALLANITE Ce ♦ ...ANDRADITE garnet group ♦ ANGLES ITE Pb SO/4 ANHYDIUTE Ca SO/4 AN KERITE-KUTNAIIORITE Dolom ite group ANN ITE Mica...Mica AN ORTHITE Fe ldspar ANORTHOCLASE Felspar Group ANTHOPH YLLITE Amphibole 2cm £8 3cm £ 15 Near...Mapimi. Mexico A LLOPHANE ALSi O A LMANDINE garnet group ♦ A LSTONITE Ba C a CO/3 A LUJ\UNITE Al SO/4 A LUMINITE...sug.iry textured mass. good small grey crystal group ~- 2x2 £15 s I z E s i\l ,\ lx l £4 Ix I |
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| fused together. A few rocks such as limestone or quartzite may be composed of one mineral species but they...groups: Minerals that have oxygen tightly bonded in a group around a central non-metallic ion. Oxides or carbonate...beryl, tourmaline, mica, feldspar, nepheline, zeolite, sodalite, bonded in a group around a central silicon... e.g., gypsum Vitreous: glassy, e.g., quartz, feldspar Transparency: Passing of Light Transparency is...2 gypsum, 3 calcite, 4 fluorite, 5 apatite, 6 feldspar, 7 quartz, 8 topaz, 9 corundum, 10 diamond. For |
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| 33 ANATASE Hingston Quarry,Comwall Black micro crystals in crystalline feldspar with minor fluorite...fluorite. X 20 needed 1.5cm £4 no/2 feldspar 37 ANCYLITE Ce Dark Star Mine,Ravalli County, Montana U.S.A Rich...grained mass in calcite .CeSr CO/3 Ix½ £2.50 Ix! £4 Feldspar 20 ANCYLITE Ce Mt Yukspor, Kola Russia colourless... 15 ■■ ALLARGENTUM Hartenstein, Erzebirge, Saxony Germany Silvery plates on 1cm matrix. Some with saffiorite...distributed in Porphyry. lx2 £1.50 2x2 £3 2x3 £5 3x4 £8 Feldspar 44 ANDRADITE Benallt Mine,Lleyn ,Wales Andradite |
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| All analyses with less than 5 per cent A12O3 ("quartzite" clan) were removed. The remaining analyses were...alkalies/AUOs indicate that the tectonic associations group together clans of chemical analyses which differ...Great Britain, tion within a single sedimentary group. He France, and Switzerland) and America. In showed...column, and yet many (1938) within the Sparagmite group of Southanalyses of Pleistocene glacial sediments...has total alkalies in excess of alumina), but to group the sandstones according to their since it is difficult |
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| Farber and Forbes Dunn of the Farber White Limestone Quarry, Bernard Kozykowski, J. Kenneth Fisher. Miss Margaret...Median Gneisses)........ .. . . . . . .. Hardyston Quartzite Formation . . . . . . ... . ..... . . . . . ....Franklin limestone. Still another, the Hardyston quartzite, was formed by the metamorphism of older rocks...(Nicoll). The modern and fully equipped Farber Quarry. on Cork Hill Road, is the only active operation...metamorphism , selective melting may have generated feldspar-rich solutions or molt�n rock (magma) which moved |
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| orange-red masses with darker Hornblende lxl £1 lx2 £2 Feldspar lxl £2 lx2 £3 BaS0/4 --- ---------------------------...semi-vitreous mass lxl £I.SO lx2 £3 2x2 £4.50 Feldspar Ix2 £4 2x2 £8 2x3 £ 12 3x4 £25 Be Al SiO · - -----...THAUSITE Modum, Buskerud,Norway 59 BOEHMITE Saga Quarry, Tvedalen, Norway Brown-purple mass in matrix Creamy...pale pink crystalline mass with some micros on Feldspar. lxl £3 lx2 £5 2x2 £12 Al Mn SiO ½" £4 lxl £8...--· - . . - - ------ -·-··-·-· ---·7 ANNITE Saga Quarry, Tvedalen near Larvik, Norway 696 CHROME DIOPSIDE |
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| look for. Michael O’Donoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...black rock, containing no quartz but rich in the feldspar minerals pyroxene and olivine. Old basalts with...rocks contain large crystals, often of the feldspar group and are known as porphyries. The individual...traprock is diabase in which lath-like crystals of feldspar grow first and darker minerals grow round them...structure. It contains mostly quartz and orthoclase feldspar with some smaller amounts of a darker mineral |
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| cleavages with cerussite and or Pyrolusite (Merehead Quarry, Hendips,Somerset) ij X l El.60 1 x H E2.50 200...BREWSTFRITE Sr Ba C2 Alurnino Silicate. Zeolite Group Goodccverage of glassy crystals on matrix. (Strontian...Scotland) lxl El.GO lx2 E3.20 183 CHABAZITEzeolite group good coijerage of glassy micros an rnalr~x.(RarnsleyHine...(RarnsleyHine,Devon England) 222 GOBBINSITE Zeolite Group. pale creamy fibrous areas in Basalt. (Portmuck...Ireland) 1/2 x l/2ins f5 283 HORDENITE Zeolite group (Ca Na/2 K/2)Al/2 Si/10 0/24 7 creamy white, water-worn |
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| fused together. A few rocks such as limestone or quartzite n1ay be con1posed of one 1ntneral species but...groups: Minerals that have oxygen tightly bonded in a group around a central non-metallic ion. Oxides or carbonate...Silicates: Minerals have oxygen tightly bonded in a group around a central silicon aton1. Olivine, garnet...talc, clay, cb.rysotile, ch tysocolla, quartz, feldspar, nepheline, zeolite, sodalite, lazurite are the...e.g., gypstun Vitreous: glassy, e.g., quartz, feldspar Transparency: Passing of Light Transparency is |
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| the Mescal Limestone in the Proterozoic Apache Group by intrusion of diabase sills about 1,100 Ma (Shride...corresponds chiefly to the outcrop area of the Apache Group and diabase sills. Although zones of asbestos alteration...as fillers and in thermal insulation. Feldspar The feldspar group of minerals are anhydrous aluminum silicates...constituents of igneous rocks. The members of the group that find common use as industrial minerals are...member of the plagioclase feldspar series (albite). The chief uses of feldspar are in the ceramics and |
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| squares arc new entry for this list ANALCIME Dean Quarry, Lizard ,Cornwall Achmclvich, near Lochinvcr, Scotbnd...ANATASE Lauvland, Frigstad, Evjc Norway 933 Hingston Quarry,Cornwall 16 Rich grey-white cleavages , some with...micro crystals in crystalline feldspar with minor nuonte X 20 needed feldspar 2x2£4.50 Ti0/2 lx2£3 1 .5cm£4...masses colourless micro crystals on 3mm matrix feldspar 2x2 £10 CcSrC0/3 lx2£5 £2.i� lxl£3 ALBITE Kragero...(Mangan rich variety) Olive green masses in rock Feldspar Al MnSiO lx2 £2 lxl£3 2x2£12 lx2£5 lxl £1 ----· |
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| Zcolite Ix! £4 lx2 £8 2x2£16 26) ■ MAGADIITE Aris Quarry, near Windhoek,Namibia / White micro snow-flakes...SiO 220 ■ MENDIPITE ✓~ CaAISiOC0/3 Merehend Quarry, Mendips Somerset Very rich white to pinkish faintly...Moo • ■ NATIVE GOLD Rhine river, near Buihl, Germany Many micro-flakes in gelatin capsule £5 1074 285...N'Chwanwing 11 mine, Kuruman,South Africa Fmm crystal group, looks like a bow tie, 20mm x 5mm £7.50 Ca Mn SiO...fluorescence lxl£3 lx2£5 FLUORESCEN'. ■ SCHEELITE Penlee Quarry, Newlyn,Cornwall creamy spots in chlorite. Fluorescent |
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| to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System...) 6-21 %. VHN(synth.) (10.C. purine-porphyrine group). a nickel porphyrine. With quartz. rutile, piemontite |
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| proportions of orthoclase feldspar (generally pink, as in this specimen) to plagioclase feldspar {white. yellow...type of igneous rock is composed of plagioclase feldspar. biotite. hornblende, and pyroxene. with virtually...more abundant than plagioclase feldspar. This sample 1s from Germany. This rock form is composed almost...almost entirely of plagioclase feldspar (anorth1te or labradonte). Anorthosite It 1s not a common rock...is a granite porphyry in which phenocrysts of feldspar and quartz occur within a groundmass composed |
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| andIrish Creek. It is composed mainly of pink to red feldspar, green epidote,and g a y quartz along with other...MINERAL SPECIES AND ELEMENTS ACTINOLITE - AMPHIBOLE GROUP(hydrouscalcium,magnesium, ironsilicate).Actinol...investigationforberyl andtininthis area. BIOTITE - MICA GROUP(potassium,magnesium,iron, silicate).Green bioti...quartz crystals at Barger's Quarry near Lexington. A barite crystal from the quarry can be seen in the Washingtonand...18incheswidecuttinggraniteisreportedeastofthe CALCITE -CALCITE GROUP (calcium carbonate). Calcite isawidenaturecamponBigMarysCreek |
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| Miguel Hortiguela, LPPO Illustrations: Crowle Art Group Printed in China The publisher gratefully acknowledges...composed ofjust a few minerals; quartz and the feldspar group are the most abundant processes — called biominerals...crystals found in many volcanic rocks — such as feldspar and leucite — crystallized in a magma chamber...original quartz sand grains results in very compact quartzite. Earth’s Recycling Program Rocks can be recycled...aragonite crystals in fossil ammonites, and the feldspar gem varieties labradorite and peristerite have |
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| Syenite Rock . Microprobed material lxl £1 lx2 £2 Feldspar ½" £4 Ix! £6 lx2 £12 2x2 £25 35 ■ ALBITE Hoydalen...quite well covering Basalt. lxl £4 lx2 £8 2x2 £16 Feldspar Ix I £1.50 lx2 £3 Zeolite 16 ALBITE Lauvland,...CaFeP0/4 lxl £1.50 lx2 £3 2x2 £4.50 2x3 £6.50 Feldspar 963 ALBITE Maine USA 811 ANATASE Tysse, Hardanger...3mm crystal on quartz TiO lxl £3 Ix2 £5 2x2 £10 feldspar £5 ····- ~-------·-·-- ·· -·· 1077 ■■ ALLOPHANE...933 ANATASE Hingston Quarry,Cornwall Black micro crystals in crystalline feldspar with minor fluorite |
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| asphalt . showing cleavage and bedding in slate quarry with cleavage parallel to bedding Map showing distribution...Diatomaceous earth from Lompoc, Calif Memphis mine group, along line ss of Plate XXXIV. Map and sections...367 121. Section showing relations of ocher, quartzite and clay, near Car- Ga 372 showing area of...near Reed Island, Va 553 Section of fractured quartzite from residual limonite deposit, Pitts554 ville...sphalerite and galena, 218. Cavities in Cambrian quartzite, 219. Section of oxidized ore deposits, 221. |
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| immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...glassy grains quartz, and the yellowish grains feldspar. The whole specimen is called granite. Limestone...minerals, of w.hich feldspar, quartz, and mica are the main constituents. Quartzite consists of quartz...(NaCl), pyrite (FeS ), 2 magnesite (MgC03), potash feldspar (KA1Si 30 ), are mineral 8 examples, whilst hydrochlo_ric...one positively and one negatively charged ion or group of ions: a positive cation (+),and a negative anion |
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| either to the pyroxene group, the ,,triclinic pyroxene" group, or the feldspar group of minerals in a1l of...Cambridge on the border of the Boston Basin. A large quarry for road metal has been operated there for some...quarried is a granodiorite together with the quartzite into which it has been intruded. Cutting the diorite... JOURNAL MINERALOGICALSOCIETY OF AMERICA 297 in a quarry opened recently in the diabase at the foot of Mt...BaerxcroNrrE rRoM lJxnRrocn, Massacuusnrrs. A small quarry was openedin Uxbridge, Mass. many years since,in |
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| graphite mine Feldspar quarry Peerless (Diamond) Mine Road-cut Cadieux quartzite quarry Emerald Mine Pedneaud...Pedneaud quarry Derry Mine Daisy Mine Jack (Jake) Lake Mine Burnt Lake Mine Back (Wallingford) Mine Smith...Davis Mine Glen-Almond Mine Cole Lake Mine Perkins feldspar mine Little Rapids (Watts) Mine km 20.0, road-cut...Guenette granite quarries Canada Marble and Lime quarry Labelle garnet mines Castor Lake (Clot) Mine Anorthosite...Desgrosbois deposit Ivry Mine St-Donat quarry Rockway Valley marble quarry St-Remi china clay mine Laurel diopside |
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| klESBiiM^x '■ F. ’ ■ • r’ r & * • COLLECTION ■ r QUARTZITE minerals FIRE OPAL gemstone with this issue THEISM...Opal MINERALS Greywacke, Leucitite, Phyllite, Quartzite GROUNDWORK______________ MW- THE STORY OF THE...is generally classified as a member of the oxide group of minerals and gemstones. In addition to silicon...water molecules are driven off. FILE FIRE OPAL Group: Oxides______________ Crystal system: None (amorphous)...Cornwall and Devon (England); the Rhine Valley (Germany); Ireland; the northern Apennines (Italy); Kyushu |
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| Examples of metamorphic rocks are slate, marble, and quartzite. Think of igneous rocks as the first or parent...place to collect is a quarry or a mine. You need not even go into the mine or quarry. Look instead at the...you collect on private property. If the mine or quarry is aban¬ doned, ask someone who lives nearby where...Talc Gypsum Calcite Fluorite Apatite 6 7 8 9 10 Feldspar Quartz Topaz Corundum Diamond Any mineral on...MICA into flat sheets in only one direction. Feldspar splits in two directions that meet at nearly right |
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| 933 ANATASE Hingston Quarry,Comwall Black micro crystals in crystalline feldspar with minor fluorite....orange-red masses with darker Hornblende lxl £1 lx2 £2 Feldspar 1.5cm £4 TiO/2 - -·- ·- ------- ··-- - -- -- -...Sr CO/3 Ix I £ 1.50 Ix2 £3 2x2 £4.50 2x3 £6.50 Feldspar - - -- ·- -37 ANCYLITE Ce Dark Star Mine.Ravalli...sheafy, masses Ce Sr CO/3 lxl £3 lx2 £5 2x2 £10 feldspar Ix½ £2.50 lxl £4 -ks-5 II■ .Ai BITE Hoydalcn,...rich variety) ½ x ½ £5 Ni AsO H/20 7 ANNITE Saga Quarry, Tvedalen near Larvik, Norway Pure black mica plate |
