 | | Journal (issue) | | membership. Persons living over 60 miles from Haywards Heath may opt for associate membership. Anyone joining...the Haywards Heath Methodist Church Hall 110 yards south of Clair Hall, Haywards Heath from 7.30 - 10...com Catherine Foley 53 Carter Drive Broadridge Heath Horsham WEST SUSSEX RH12 3GZ 0771 3824138 smlstreasurer@gmail...meetings. We also plan to run some field trips, so keep an eye on this space and our website. Our Sussex Mineral...and Fossil Show is on course to run at Haywards Heath College on Saturday 20th November. We now have a |  | | Book (volume) | | concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty the Arizona agatized wood. This...the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....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 |  | | Book (volume) | | concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty the Arizona agatized wood. This...the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....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 |  | | Book | | For all thei.r skiUs and expertise - wor1h more th,an gold were the.y. We also must ac.knowle.dg-e, f,o...one's favourite specimens for this publication. Not an easy task. As the current chairman of SMLS I hope...overseas field trips; to Europe, Siberia, Namibia, the USA & Canada and the Faroe Islands. Practical courses...hydraulic shaft in the Smallcleugh Mine and we bought an inflatable dinghy so we could land on Sgurr nam Boe...particularly the Oxford, Bakewell and Haywards Heath Shows, to purchase specimens and view the range |  | | Book (volume) | | Plains, wells drilled deep into this unit provide an inexhaustible supply of cold artesian, Rocky Mountain...series of pegmatite dikes ranking with those in Maine and Southern California for their production of...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...tributary gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream |  | | Report (issue) | | there may be an interval of more than ·thirty years before it is possible to undertake an effective revision...of the M esozoic and sub-Mesozoic rocks, beneath an area of low gravity anomaly revealed by geophysical...essential to collect all the information upon which an assessment can be made of reserves for current and...as important for the exchange of knowledge and for an appreciation of the geological work being undertaken...GEOLOGICAL SURVEY WORK IN SCOTLAND In January, 1 956, an exhibition of work was held in the Edinburgh Office |  | Gehlen, M., Beck, L., Calas, G., Flank, A.-M., Van Bennekom, A.J., Van Beusekom, J.E.E. (2002) Unraveling the atomic structure of biogenic silica: evidence of the structural association of Al and Si in diatom frustules. Geochimica et Cosmochimica Acta, 66 (9) 1601-1609 doi:10.1016/s0016-7037(01)00877-8 | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ⫹ .00 Pergamon...consequences for the use of sedimentary biogenic silica as an indicator of past environmental conditions. Copyright...1% (Van Bennekom et al., 1989, 1991), compared to an average diatom Al/Si ratio of 1/1000 (Martin and...there is to date no conclusive evidence for the opal synthesized by diatoms. A straightforward analogy...environment. Cultured diatoms were chosen to provide an end-member of known particle history on which the |  | | Journal (article/letter/editorial) | | Journal Pre-proofs From diatom opal-A δ 18O to chert δ 18O in deep sea sediments A.G. Yanchilina, R.... Yam, R., Kolodny, Y., Shemesh, A., From diatom opal-A δ 18O to chert δ 18O in deep sea sediments, Geochimica...org/10.1016/j.gca. 2019.10.018 This is a PDF file of an article that has undergone enhancements after acceptance...Elsevier Ltd. All rights reserved. From diatom opal-A δ18O to chert δ18O in deep sea sediments A.G....evolution and maturation of biogenic amorphous opal (opalA) to opal-CT and microquartz chert is accompanied |  | Murray, Richard W, Buchholtz Ten Brink, Marilyn R, Gerlach, David C, Russ, G.Price, Jones, David L (1991) Rare earth, major, and trace elements in chert from the Franciscan Complex and Monterey Group, California: Assessing REE sources to fine-grained marine sediments. Geochimica et Cosmochimica Acta, 55 (7) 1875-1895 doi:10.1016/0016-7037(91)90030-9 | Journal (article/letter/editorial) | | University of California at Berkeley,Berkeley,CA 94720, USA *Earth Sciences Division and 3NuclearChemistry Division...Livermore National Laboratory, Livermore, CA 94550, USA (Received Aagast I, 1990; accepted in r~ised~r~ ...Complex and Miocene Monterey Group of California (USA) indicate that magnitudes of the Ce anomaly (Ce/Ce*)...importance of these individual processes varies across an ocean basin in such a way that REE relative fractionations...depositional environment. Our conclusions are supported by an extensive review of published REE data from various |  | | Journal (issue) | | presence or absence of a bead. Figure 2 provides an overview, illustrating sectioned cultured pearls...Figure 1: The pearl farm in North Bali, an aquacultural business with an ultra-modern approach to oyster production...host animals for the cultured pearls. Both halves of an oyster’s shell have a layer of soft skin. This tissue...purpose of growing a cultured pearl. The body of an oyster selected as a host animal has two sites where...for the operation site, hygienic surroundings and an instrument rack which is rinsed continuously characterizes |  | | Journal (article/letter/editorial) | | 2004 Copyright © 2004 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/04 $30.00 ⫹ .00 Pergamon...at Stony Brook, Stony Brook, New York 11794-5000, USA (Received May 9, 2002; accepted in revised form July...environments, particularly in the tropics, may be largely an artifact of operational definitions that do not include...debris derived from the tropical drainage basin is an abundant reactant, and thus the supply of biogenic...estimate biogenic silica was modified to include an initial mild leach step with 0.1N HCl to remove metal |  | | Book | | Phisicke, 1601. Theophrastus's History of Stones, with an English version by Sir edition, 1774. The American...sciences, demands industry and attention and to become an accomplished mineralogist much and carean acquaintance...importance. It is true minerals frequently occur in an amorphous state ; in which case, the particles of..., or Rhombohedral. lateral axes, intersecting at an angle of 60°, and one vertical axis at right angles...the Diamond, and in a less degree by the Precious Opal. Change of Colours is of a somewhat similar nature |  | | Journal (issue) | | check Dr. G. F. Claringbull kindly obtained for me an X-ray powder photograph from traces scraped from...do occur as intimate mixtures; and to obtain even an approximate estimate of the proportions in which...Robert Webster (!) carried out density measurements on an extensive range of green and pink jade-like grossulars...grossular. ( x 25). gemmological tests, that we have an almost complete range from nearly pure grossular...fluorescent and non-fluorescent grossulars might suggest an answer. I n the second place, the presence of the |  | | Report (issue) | | consisted of technical sessions, a local field trip. and an optional three-day trip. All of the papers presented...hospitality room to test the efficacy of that sys tem. An optional field trip took 45 participants to mdusmal... the form of soapstone. has an international market as fine -quality an-curving material, and gemstone...gemstone production includes agates, opal, obsidian. and sunstone, a calctc plagtoclase feldspar. Many commodities...private companies and variow. federal. l>tatc. and county agcn c ic~ . ru\ llcd l>tone. al mo~t exc lu ~ |  | Gallinari, M, Ragueneau, O, Corrin, L, DeMaster, D.J, Tréguer, P (2002) The importance of water column processes on the dissolution properties of biogenic silica in deep-sea sediments I. Solubility. Geochimica et Cosmochimica Acta, 66 (15) 2701-2717 doi:10.1016/s0016-7037(02)00874-8 | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ⫹ .00 Pergamon...to study the thermodynamics of biogenic silica (opal) dissolution in deep-sea sediments. They were applied...concentrations (Casympt; 200 to 900 mol/L) and biogenic opal content (BSi; 0.5 to 80%). Performing these experiments...interference on the dissolution properties of the opal, both in situ and in flow-through experiments. In...matrix, it is important to determine the appropriate opal solubility to be used in early diagenetic models |  | | Journal (issue) | | several things : 1) Tweak the curiosity which is an essential part of the makeup of every hobby craftworker...of product, as in dental inlays and crowns. It i'> an old process. Those who viewed the recent Tutankhamen...(12-18): $2.50 Under 12 free when accompanied by an adult SHOW HOURS August 7th 10 a.m. to 9:30 p.m...the other works. These artists work directly with an acetylene torch. None of the pieces shown were cast;...is all copper. The green color on these pieces is an acid patina which Richard developed. The base for |  | | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ⫹ .00 Pergamon...oozes. The reactivity decrease correlates well with an increase in the integrated peak intensity ratios...inorganic coatings enhance the reactivity by at least an order of magnitude. Atomic Al/Si ratios of 0.03 to...Ocean sediment trap material support the so-called opal paradox—that is, high BSi accumulation rates in...the processes controlling biogenic silica (BSi) or opal dissolution and spatial variations between BSi production |  | | Book | | Co, 283 Columbus Avenue, Boston 1 6, Mass] D. C. Heath CANADA: Penguin Books (Canada) Ltd. 47 Green Street...Waterlow & List of Plates (between pp. 90 and 91) 1. An ammonite, Phylloceras helerophyllum, to show ...meander has been cut through and eventually there be an oxbow lake. 'cut off' of a will 10a. Tract of...covering Clints Quarry, testudinarius zone. Birching- of Boulder-clay. Cumberland. xi. Sea Stacks...free quartz. acme. The period of maximum vigour of an individual race or species. acmite. Synonym for |  | | Journal (issue) | | branched axial, hollow, horny skeletal rod containing an epithelial sheath ; this is the coenosarc which secretes... COLOUR OPAL by G. F. LEECHMAN, F.G.A. S U P E R F I C I A L examination of precious opal emphasizes...the natural silica gel. It is frequently said that opal is amorphous but this very broad statement is clearly...clearly not strictly correct. Some common opal may be completely without regular internal structure, although...probably present also, according to Sosman. Precious opal obviously contains m a n y areas with visible orderly |  | | Journal (issue) | | Lebanon, N{ Ray Page Santa Monica, CA George Rossn~an Pasadena, CA Kenneth Scarratt London, United Kingdom...either by control of the new source or by access to an important market segment, can assign a name of their...in the 1970s. We at Gems o)Gemology have supported an author's right to use a term that has a reasonable...misleading. Attempting to establish the makeup of an all-powerful nomenclature board to serve the gemological...public accepts this concept, I would classify such an appellation as merely "jargon of the trade." Now |  | | Journal (issue) | | with an initial layer of opal and then later were completely engulfed engulfed by this Mexican opal. Transmitted...Transmitted and oblique illumination. 4Sx. 'Inclusions in opal', pp. 139-44. 45x. See See'Inclusions Photograph...pleased to publish a foretaste this work in the in in opal. It isItespecially appropriate to include it here...ofthe thechapter chapterononinclusions inclusions opal. is especially appropriate to include it here, since...their great achievement. The Editor Inclusions in opal Dr Edward Edward Gubelin, Gübelin, e.G., C.G., F |  | | Book (volume) | | Wheelwright pond, Lee, . 48, Section on Boston & Maine Railroad near : Newmarket Junction, . 49, Granite...have been supplied by the 4 SURFACE melting of an immense sheet of ice. GEOLOGY. These deposits thus...transported southward from their native ledges. Where an outcrop of rock is so peculiar that its boulders...which, with much probability, refers the icesheet to an astronomical cause, and claims to determine the...first position. This theory accordingly supposes that an ice-sheet was produced several .times about each |  | | Book | | in as Mineralogy. on an the more enquiring without for this ele- an going purpose, advantages...indebted friend Mr. on distort their features in to an the whose and other ERRATA. Page 28 32 Error...Error. Line 13 Guidean 30 Swan hard | an where, ? e’f 73 1 80 30 entaille 86 13 it is...and coloured mode of or by and its of for- An- Cinerary 28 V. general—Rock-Crystal—Bristol ... . XI CONTENTS. LETTER Silex XL Resinite—Opal—Hydrophane, Pitch-stone—Menilite . LETTER Jasper—White |  | | Journal (issue) | | ergriffen hat und Schüler über viele Jahre hinweg an das Thema „Schöne Steine" heranführt (Seite 10)....Programm rund um die Mineralogie und Kriminologie an . Zur Aufklärung eines imaginären Mordfalls in der...Sonderausstellung in Freiberg verlängert Di e derze it an der TU Bergakadem ie Freiberg/Sachen la ufende Sonderausstellung...sätzlich Materialkosten in Höhe von max. 1,50 Euro an . Öffnungszeiten : Mo-Fr 9 bis 17 Uhr, Wochenende...So riesig wie der Kontinent ist auch die Vielfalt an farbenprächtigen Mineralien und Edelsteinen : Afrika |  | | Book (edition) | | usually are explained and defined within the context of an individual report. The front material, however, includes...of Colombia. Corn Cornwall, England. Cumb Cumberland Coalfield, England. Derb Derbyshire Coalfield...Yorkshire, England. United States AL Alabama ME Maine OR Oregon AK Alaska MD Maryland PA Pennsylvania...mho mho(s) mi mile(s) 12 mil thousandth of an inch MMbbl million barrels MMcf million cubic...mining claim is a question of intent. To constitute an abandonment of a mining claim, there must be a going |
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Heath Quarry, Casco, Cumberland County, Maine, USA