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| Stocklmayer GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Gemstones of Western Australia FRONTISPIECE Euhedral black... MINERAL RESOURCES BULLETIN 25 GEMSTONES OF WESTERN AUSTRALIA by J Michael Fetherston, Susan M Stocklmayer...Stocklmayer Perth 2013 GEOLOGICAL SURVEY OF WESTERN AUSTRALIA MINISTER FOR MINES AND PETROLEUM Hon. Norman...EXECUTIVE DIRECTOR, GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Rick Rogerson REFERENCE The recommended reference...VC 2013, Gemstones of Western Australia: Geological Survey of Western Australia, Mineral Resources Bulletin |
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| maps produced by the Geological Survey of Western Australia are available from: Information Centre Department...Bulletin 25 GEMSTONES OF WESTERN AUSTRALIA Gemstones of Western Australia second edition While systematically...authoritative, the second edition of Gemstones of Western Australia is written not only for the professional geologist...et al. The second edition of Gemstones of Western Australia is an updated version published in response...formal inception of the Geological Survey of Western Australia (GSWA) in 1896. In this second joint publication |
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| Introduction, p. 5. List of Papers, p. 7. Australia generally New South Wales Victoria : Queensland...Index, p. 60; : Subject Index, p. 86 : Western Australia Locality Index, p. 75. Locality Index, p...p. 95. ; Subject Index, p. 102; South Australia: Tasmania: : . Locality Index, p. 110. Subject...a different name. Agam, in a new country like Australia, it is often necessary to christen a new mining...occurrences. A case in point may be cited from South Australia. Wulfenite is recorded from “ Mount Lyndhurst |
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| cousin of Fuller's earth, mined extensively in some Western states. "One of the most interesting features of... M. Shaub and B. J. Schenck, Smith College, Northampton, Mass. (pp. 661-664). MICHIGAN — The following...Avenue, Fountain Hill, in his city of Bethlehem, Northampton Co., Penn. The locality sounded most interesting...Superior along the eastern border of Minnesota and western Wisconsin through Iowa and Illinois along the Mississippi...—25(i. A very fine publication; send for a copy). AUSTRALIA — The following item, dated April 2, 1954, comes |
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| recently. A good distantvision reading indicated opal, but our customer didn't think it could be, such...nondestructive a n d the material, which was probably opal, was frangible to say the least. A matching density...comparison stone established the stone to be opal. * * * Another opal, which caused me a lot of trouble customerwise...customerwise, not gemmologically, was a black opal purchased as such, mounted in a ring a n d offered for...found the opal colour lipped slightly into the potch and again where potch merged into opal colour. This |
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| bound.anes of Hampshire County, situated in ~e western half of the. state. The writer has attempted to...---------.--..-...-.. hue in basalt exposure. Northampton, Mt. Tom -------------------..- Nodules of various...Eroded from underlying basalt. _... ? Belchertown Northampton, Mt. Tom Crystals eroded from basalt. Pelham...serhouse and in nearby brook pentine outcrop. Northampton, Mr. Tom _........... Milky and variously tinted...derived from blasted outFarm crops of pegmatite. OPAL Northampton, Mr. Tom ________ ._____________ Common variety |
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| GRAPHITE IN WESTERN AUSTRALIA by J Michael Fetherston Graphite in Western Australia FRONTISPIECE...IN WESTERN AUSTRALIA by J Michael Fetherston Perth 2015 GEOLOGICAL SURVEY OF WESTERN AUSTRALIA MINISTER...EXECUTIVE DIRECTOR, GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Rick Rogerson REFERENCE The recommended reference...JM 2015, Graphite in Western Australia: Geological Survey of Western Australia, Mineral Resources Bulletin...Bulletin 26, 84p. National Library of Australia Cataloguing-in-Publication entry: Author: Fetherston, |
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| Affiliated Associations: GeDlDlological Association of Australia Canadian GeDlDlologica1 Association Rhodesian...most important of such gems are pearl, turquoise, opal and jade, and possibly agate a n d coral. Pearls...stone in its crystallized form. Broken Hill, Australia, seems to provide a few such crystals from time...banding of blue is something not seen too often. Opal which is truly black must be considered a curiosity...ein Ersatz für schwarzen Opal. Dyed matrix opal, a substitute for black opal. Zeitschr. d. deutsch. Gesell |
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| Affiliated Associations: Gemmological Association of Australia: Canadian Gemmological Association: Rhodesian...schist, Arrow Valley, Kawarau Survey District, western Otago, New Zealand. (Hutton, 1957). Anal. C. O...were a 5-32 et moldavite, a stained quartzite, an opal of bluish-black colour sprinkled with small iridescent...cabochon surface and of blue only on its base. T h e opal was not porous, plasticized or apparently treated...acetone was found. R a t h e r more than a treated opal it seems, b u t on sight it looked like a treated |
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| Township; the old Williams or Sherrer quarry, Northampton County, in which autunite, “gummite,” and uranophane...County. Autunite is extremely widespread in the western United States and is considered by some to be the...County, and is found as crystals on matrix with opal near the Virgin Valley Ranch in the famous Virgin... It occurs sparsely as crystals associated with opal, cinnabar, and fluorite in calcite veins at the...County, and is associated with fluorite and hyalite opal in “great abundance” as apple-green well-crystallized |
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| Icassi1ite~9~7,O)+O Chatham, USA CR Crystal Res.Com.,Australia O extra flinty o extra dersedense fljnt~(6J1)...46) -Ca-crown glass(^2,44) -obsidian (2,33-2,42) opal (1.98-220) 0,0400,040 DIAGRAM FOR FORTHE THEIDENTIFICATION...ASiliated Associations: Gemm.ologieal Association of Australia Canadian Gem.m.ologica1 Association Rhodesian...demantoid garnet, peridot, nephrite, haematite and opal, etc.), the small drop of water is dispersed, and...methane-produced diamonds, which is being carried out at Case Western Reserve University in Cleveland, Ohio, is to grow |
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| hydroxy-: HYDROTHERMAL METAMORPHS: quartz, chalcedony, opal; Orthosilicates, hydroxy-: Silica: epidote, muscovite...PRODUCTS: (in part Hydrometamorphs) Silica: chalcedony, opal; Silicates, hydrous: vermiculite, kaolinite, chloropal...Silica: (in part Hydrometamorphs) chalcedony, opal; Orthosilicates, hydroxy-: gibbsite; Hydrous ...MINERALS 17 WEATHERING PRODUCTS: Silica: chalcedony, opal or tho silicate: kaolinite; Hydrous oxide: limonite...part Hydrometamorphs) Silica: quartz, chalcedony, opal; Carbonates: aragonite, zaratite; Hydrous silicate: |
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| Northampton Sand Ironstone (Ment. Geol. St1rv.) A. COLSTERWORTH 0. 2 PLATE I lRONSTONE Pfl' B...GEDDI GTO IROi STO E PIT TYPICAL WORKINGS I NORTHAMPTON SA D IRO STO E Frontispirce DEPARTMENT OF SCIENTIFIC...T. H. Whitehead as District Geo)ogist., The Northampton Sand Ironstone Field was mapped on the scale...covered in a separate volum�, ' Petrology of the Northampton • Sand Ironstone Formation', 1949. . Grateful...67 71 . • • • .. • • KETl' ' ERIN0 TO NORTHAMPTON . • • • • • • EXPLANATION ·oF PLATES |
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| are known from the earliest periods in Egypt and Western Asia. Normally these imitations are purely colour...M.O'D. SGHOONOVER ( M . ) . Gem Treasures of Australia. Lapid. J o u r n . , 1972, 26, 4, p . 628. A...A general account of the gem localities of Australia with a background of a continental journey. Detailed...the fields are given, in particular those bearing opal a n d sapphire. M.O'D. STRUBEL (G.). Hydrothermal...the occurrence and use of turquoise in the South-Western United States, this book is the result of lengthy |
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| Roxbury Falls, in Southern Litchfield County of western Connecticut. Mrs. Scheffer's crystal is one of...the 'Loudville Mine' but that locality is in Northampton and a half mile north and located in a hillside...Morton Salt Company Mine near Mentor which is in western Lake County in N / E Ohio. A recent letter from...Elkins, W. Va., on W. Va. US Route 33. Mr. Fred Western is the company geologist and a very nice person...and opposite the quarry office. Riverton is in western Pendleton County in eastern West Virginia. W Y |
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| Pyrite (p. 23); Calcite (p. 24); Fonns of Silica; Opal (p. 24); Quartz, Chalcedony (p. 26); Collophane...Banbury Ironstone Field : . Northern limit (p. 140); Western limit (p. 140); Southern limit (p. 142); Eastern...Mesozoic ores. Since then production from the Northampton Sand Ironstone (Hollingworth and Taylor 195 1...a thin bed of siderite mudstone, while on the western side of Great Fryup the same series passes up into...(4) the district around Banbury in north Oxford shire, including adjacent parts of Northamptonshire and |
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| Good Hunting. Incidentally, I'll be wearing a western-type hat. OCTOBER AUTHOR The author of the article...153 tons over the years. Graphite occurs in Western Australia as flakes and small lenses within the planes...graphite has been commercially produced are the Northampton Mineral Field and in the southern part of the...Chatham, N . J . 0 7 9 2 8 AUSTRALIS MIX FINE FIRE-OPAL PARCELS FROM A U S T R A L I A . This c h u n k |
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| mine openings It is throughout the counties of Northampton, Lehigh and Berks, and at the various other limonite...Wharton's mine, three miles from Hellertown, Northampton Co. Considerable quantities have been occasionally...from Glendon, coating the limonite, at the Northampton Co. wad were mined, some years ago, at Great...good locality in Easton is at the vacant lot at Northampton and Twelfth streets. I have also observed fine...in groups, at Flint Hill, near Lcithsville, Northampton - Co. Transparent crystals occur on Lee's farm |
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| occurring in "gulls" in the basal unit of the Northampton Sand Formation as pale orange-coloured nodules...Jurassic. For example, several divisions of the Northampton Sand Formation are rich in members of the kaolinite...example, in a pit opened in the grounds of the Northampton Mental Hospital (Natn. Grid. Ref. SP770600),...the surfaces of joints in the ironstone of the Northampton Sand Formation (Herman, 1871). During a routine...Favell (Natn. Grid. Ref. SP7861), now a suburb of Northampton, an aluminium-rich clay mineral was found in |
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| Aftiliated Associations I Gemm.ological Association of Australia: Canadian Gemm.ological Association: Rhodesian...from the new Diamant-Photometer, developed in Western Germany, in co-operation with the Scan.D.N. Committee...is m a d e of a suspected artificially coloured opal, a n d on newer 174 developments in plastic-treated...in the second photomicrograph. E.S. FRERE (A.). Opal-Tripletten. O p a l triplets. Zeitschr. d. deutsch...used to produce opal doublets. Usually in these opals a thin plate of precious opal is fixed onto a lower |
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| Occurrence: In “opal" veinlets in rhyolite, agglomerates, sandstones and limestones. Association: “Opal," “chalcedony...Yavapai Co.; and from the Williams quarry, Easton, Northampton Co., Pennsylvania, USA. At the Margaritas and |
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| AfIiliated Associations: GeJDD101ogical Association of Australia Canadian GeD1D101ogica1 Association Rhodesian...be extended: Diamond, zircon, demantoid, peridot, opal, amethyst, star-sapphire and ruby, chrysoberyl cat's-eye...lapidary work. 99 IRIS-OPAL FROM MEXICO By JOHN SINKANKAS* H Y A L I T E opal exhibiting iridescence...or gemmological literature of the iris-effect in opal and for this reason it is deemed worthwhile to report...investigation into the nature of this new variety of opal. Specimens of hyalite obtained from Mexico by M |
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| per cent, passed out in suspension. Most of the Opal•• At a recent meeting of the California Academy...auto-mobile torpedoes. The precious, or noble, opal is one of the most beau- mento discharges. Tbe...the when the stone is moved about, as then a fine opal amount of damage which had been done to various...bodies of workable gravel yet re- Some varieties of opal (the common) are found with tbe conclusions of...of the coarser ma· in the matrix from Mexico, Australia, and Hungary. After a number of decisions by |
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| 703 Carbonate Dissolution on the Muir Seamount (Western North Atlantic): Interglacial and Glacial Changes...Quaternary Calcareous Dunes in Coastal South Australia ........................ John K. Warren 787 ...the Rochester Shale (Silurian; Wenlockian) in Western New York and Ontario .... Carlton E. Breu 947...CROOK Australian National University, Canberra, Australia LARRY J . DOYLE (Announcements) University of...Me 0.. ~ FIG. 1.-0utline map of central and western New York showing outcrop belt (not to scale), location |
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| hobby by Jordan D. Marché II Boulder and Matrix Opal Fiery veins stand out in host rock The Pendleton... JULY AND AUGUST OPAL SPECIAL: ROUGH OPAL PARCEL FROM LIGHTNING RIDGE AUSTRALIA. LR15B-3oz: Three ounce...ounce rough opal lots from Grawin/Mulga and Lightning Ridge Opalfields in New South Wales Australia. This is...is a potch and color grade of rough opal with lots of possibilities and lots of color at a very affordable...color” opal grade. $135.00 plus $9.25 shipping for a 3 ounce lot (93.3gm). There are many more opal lots |
