 | | Journal (article/letter/editorial) | | live in Germany, the other 10% live in Holland, Austria, Switzerland and many other countries of Europe...village east of Hannover city. There are some quarries which operate for limestone. This Triassic limestone...Jurassic formation. Holzmaden has many little quarries which operate in the zone of Lias. Many fossils...limestone for industrial purposes is yielded. The quarries operate in the upper Jura, called white jura....dyscrasite have been found. Seldom on market. Fluorite and baryte mine still in operation. (8) South-Black-Forest |  | | Journal (article/letter/editorial) | | crystalline, igneous rocks are exposed at surface (granite, pegmatite, crystalline, schists, quartz or limestone...stephanite, arsenopyrite xls, tetrahedrite xIs, also fluorite, barite and other minerals. Freibergite, var....Nabburg. W olsendorf (calcite xIs, barite xIs, fluorite, uranium minerals). Hag644 endorf (vivianite...thalium. STRZEGOM (Strigov), Lower Silesia, Poland. In granite quarries occur large xIs of microcline...twins of gypsum crystals. BLEIBERG, Carnthia, Austria. Leadzinc deposit, here occur: galena, large xIs |  | | Journal (article/letter/editorial) | | sphalerite is a lead-silver mine in the Silverton district, San Juan County, Colo. The mineral occurs as...Eugene VanderWender, Harrington, Kent County, Del. District of Columbia—French Morgan, of Washington, D. C...another very unusual find of petrified wood, in the District this time, and within a half mile of where I live...cleavable masses of calcite, white to purple masses of fluorite, lustrous cleavable masses of galena, and deep...crystalline masses of sphalerite occur in the Davenport fluorite mine, near Marion, Crittenden County, Ky. Louisiana—Beautiful |  | | Journal (article/letter/editorial) | | Libraries, Kingston"] at 08:14 13 August 2013 Fluorite in Granitic Pegmatites MARK IVAN JACOBSON 1714...octahe- dral or cubic fluorite crystals perched on earlier-formed minerals. Fluorite is almost always a...quartz are enhanced by a purple or green cube of fluorite hanging from a crystal face or nestled on a crystal...Index map showing the major worldwide pegmatitic fluorite localities, prepared by William Besse. The numbers...ROCKS & MINERALS Figure 1. Fluorite, 10 × 7.2 × 5.7 cm, from the Conway Granite, near Red Stone quarry, |  | | Journal (article/letter/editorial) | | sent R&M—it is an interesting specimen of gray granite showing specks of brassyyellow pyrite. A 4'á inch...color) have been found in the Silver Mountain district, Alpine Co., Calif. COLORADO-"Prof. Richard M...octahedra in quartz from the Mica Lode, Royal Gorge District, (Fremont Co. ), Colorado. The garnet ranges in...number of specimens from that famous Zinc-Lead District, which includes N. W. Arkansas, S. W. Missouri...in the following item: "Philipsburg (Granite Co.), Mont. Fluorite, partly in modified crystal form on |  | | Journal (article/letter/editorial) | | Hyrsl 2007). It is associated with stibnite and fluorite and is sometimes finely intermixed with mopungite...Fichtelgebirge, Germany, and collecting in the local granite quarries. From 1959 to 1982, he spent time each year...year in the Sonnenblick Range in Rauristal, Austria, climbing and collecting in the steep mountains. From |  | | Journal (issue) | | card that secures the privileges of many mines, quarries, clubs, societies, museums, libraries. (3) The...Mt. in the Percy Quadrangle. The Granite and Its Druses The granite in which topaz, amethyst and smoky...grayish-white biotite granite, is coarse grained and without foliation. Locally the biotite granite grades into...hastingsite granite, and in turn the hastingsite granite grades into riebeckite granite. The southwestern...quadrangle. The reddish to grayish-white biotite granite is definitely the youngest rock present since it |  | | Book | | Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Alberene and Old Dominion quarries, Albemarle County. In these two soapstone quarries, tabular ilmenite crystals...specimens emerged from diggings on the ridge of alkali granite called Tor Ghar ("Black Mountain"), very near the...of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...testing to be hematite. Zagi [Zegi] Mountain, Warsak district, North West Frontier Province. Surface diggings |  | | Journal (article/letter/editorial) | | several decades from the famous Deccan basalt quarries of India, and, in keeping with the zeolite theme...Massachusetts. It has been reported from the traprock quarries of New Jersey, including those at Edgewater, Bergen...colorless crystals coating joint surfaces in granite quarries in the Lithonia area of Dekalb County, Georgia...sparkling white prismatic crystals found in basalt quarries of the Deccan Plateau in the Pune (Poona), Nashik...include the Malad-Kurar quarry near Mumbai and quarries at Junnar, Kolar, Mahad, and Nashik. Associated |  | Davison, E.H., Dines, H.G., Leese, C.E., Owen, D.E. (1938) Easter field meeting, 14th–21st April, 1938, Cornwall. Proceedings of the Geologists' Association, 49 (4) 385-391 doi:10.1016/s0016-7878(38)80003-1 | Journal (article/letter/editorial) | | gto n H aven , where a series of sla tes in the Lower Grey .Measures is exposed . There again , fine examples...connected with it that carries Upper Culm ro cks over Lower Culm and in pl aces ev en on to Devoni an . The...the extensive peneplain at 1,0 00 feet, and the granite heights of Brown Will y and Roughtor rising above...phyllites-the lowest members of the Upper Devonian of the district, were given close attention in Hodge's Ground...stop was made at the celebrated Delabole Slate Quarries, where the management had displayed samples and |  | | Journal (issue) | | JANUARY–FEBRUARY 2019 Articles The Almadén mining district, Ciudad Real, Spain ............................other young collectors, and visited some local quarries in search of specimens, though he initially found...photography and travel. He died on June 12, 2018. 3 Fluorite, Frunthorn, Vals Valley, Switzerland, 5 cm Photo:... Maharashtra, India 6 cm The Almade;n Mining District, Ciudad Real, Spain Borja Sainz de Baranda Graf...Alcala de Henares (Spain) The Almadén Mining District exploited the largest mercury deposit in the world |  | | | | as a volcano. An example of intrusive rock is granite while an extrusive example could be basalt. Sedimentary...along road cuts, river banks, cliffs, ridges, quarries, and excavations. Localities can be found in books...and chlorine). Examples are halite, sylvite and fluorite, quite common minerals. Oxide groups: Minerals...is as follows: | talc, 2 gypsum, 3 calcite, 4 fluorite, 5 apatite, 6 feldspar, 7 quartz, 8 topaz, 9 corundum...common quartz or feldspar (2.6 g/cm*). Baryte and fluorite are much heavier with densities of 4.5 g/em? and |  | | Report (issue) | | topazes, weighing a total of 3.03 carats on the lower wings. The small stones in the wings, totaling 19...from Untersulzbachtal, Hohe Tauern, Salzburg, Austria The projection is down (100). Notice the ABCB...Gerais, Brazil; Kiyoshi Kiikuni collection and photo Lower left: Topaz and lepidolite, 3.2 cm tall; Virgem... and quartz, with inclusions of margarite and fluorite. volcanic deposits should be drier and shallower...alkali elements. If the calcium content is high, fluorite will form instead of topaz. Water contents in |  | | Journal (article/letter/editorial) | | of some deep purple fluorite xls, and the specimen comes from the famous fluorite mines of Cave-in-Rock...found in a road cut about 10 miles south of the District of Columbia." The gypsum clusters were dark gray...xls on prehnite, are found in Lane's trap rock quarries near Westfie'd, Hampden Co., Mass. KENTUCKY—Russell...unusually nice specimen consisting of colorless fluorite with slender metallic inclusions of marcasite...Inglesby, Torrey, and often associated with calcite, fluorite, Utah. sphalerite, and galena. VERMONT—Galena |  | | Journal (issue) | | most repre sentative buildings of historicism in Austria After ten years of construc tion the building...�--�-�'-'- Nephrite bowl, 13 cm high. Baikal Lake district. Inv. No. A.y.952, from the estate of Earl Moritz...ofBrazil, the former Archduchess Maria Leopoldine of Austria (L 797-1826). Material from h1stralia and New Zealand...pegmatite, width 8 cm. Loch Borrolan, Assynth District. Sutherland, Scotland. Mineralogisches Museum...thin-section, crossed nicols. Loch Borrolan, Assynth District. Sutherland, Scotland. Photo: Joachim A. Lorenz |  | | Book | | SITES IN DERBYSHIRE—John and Joan Lawson PEAK DISTRICT—John Lawson THE CURSE ON THE MAGPIE-Peter Rodgers...course, is famous for its fluorite minerals. Good specimens of massive fluorite are available but of interest...this country’s mineral wealth. Tin from Cornwall, fluorite from the Midlands and the North, are booming as...happen in Weardale, where there is a brisk trade in fluorite minerals. Last October at the Becermet Mine in...course, is famous for its fluorite minerals. Good specimens of massive fluorite are available but of interest |  | | Report (volume) | | ..................................... 7 9 9 Granite proper................................................................ Text-book references on granite and black granites.................. Special features...texture and colors............................... Granite discoloration, its causes........................................ Dikelike masses of schist in granite.............:.................... Riebeckite and...minerals on joint faces......................... Granite contacts in relation to sheet and flow structure |  | | Report (issue) | | Amber Asbestos Barite Chromite Coal (Lignite) Fluorite Kyanite Iron Magnesite Manganese Marl Phosphate...was in common use in Winnipeg architecture. The quarries were barely 10 years old at the time, and Tyndall...provided the raw material for the northwest bastion of Lower Fort Garry. The fort, on the banks of the Red River...Tyndall stone, a few kilometres upstream from the Lower Fort. It is the oldest church still in use in western...Manitoba's first commercial stone quarry, in the Garson district, to serve Canada's booming construction industry |  | | Journal (article/letter/editorial) | | ,Kola, Italy Germany Heftet , Norway Styria, Austria I eESCRIBED ~Allende-meteorite I 2009 History...the Heftetjern-pegmatite in Tørdal The numerous granite pegmatites of the Tørdal area are situated within...basement (15201500 Ma) are intruded by the Tørdal granite (960-850 Ma) which is regarded as the source of...Telemark is geochemically different from other granite pegmatites in south Norway, being characterized...fluorine-minerals, - Heftet jern have only ONE, - yttrian fluorite, and some F in the micas. No trace of topaz. Among |  | | Book | | as a volcano. An exan1ple of intrusive rock is granite while an extrusive example could be basa lt. Sedin1entary...along road cuts, river banks, cliffs, ridges, quarries, and excavations. Localities can be found i11...and chlorine). Examples are halite, sylvite and fluorite, quite con11non 1ninerals. Oxide groups: Minerals...common quartz or feldspar (2.6 g/cn1 3). Baryte and fluorite are n1uch heavier with densities of 4.5 g/cm 3...p. 214 apatite (green, reddish brown), p. 128 fluorite (colourless, blue, green), p. 106 kyanite (blue) |  | | Journal (article/letter/editorial) | | minerals from the Castle Dome District of Yuma Co., Ariz. The specimens are fluorite (group of small grayish...galena (lustrous cleavage mass with faint purple fluorite cleavage) ; vanadinite (lustrous, drusy, brownish...marl near Delaware City, New Castle Co., Del. DISTRICT OF COLUMBIA—The following notes, dated Dec. 25...excellent goethite géodes I have found in the Oxon Run district. The goethite ranges from 1/8" to 1/2" thick as...nodules geode. occur in limestone lenses in the lower part Quartz (Rock crystal) Small xls (some of a |  | | Journal (article/letter/editorial) | | quartz J have yet seen." CALIFORNIA—The limestone quarries in Crestmore Riverside Co., Calif., considered...area, we have closed the Commercial and Lonestar quarries to collectors. W e feel that with blasting and...to California and if you would like to see our quarries, of course I would be glad to show you around...We have nothing suitable for cutting, and our quarries, at least for the time being, are officially closed...rather large cleavages of amblygonite out of the lower east wall of the Strickland quarry, I uncovered |  | | Journal (issue) | | section which may contain a number of mines or quarries is often listed apparently as a single oc currence...featuring two localities? At Oneco, Conn., are two granite quarries, Oneco and Marriot, which have produced a...These are but a few instances of how mines or quarries are often incorrectly, loosely or carelessly recorded...it really from Clay Center, or one o f the many quarries near several other Ohio towns? t ^ ra M sg s...Mineralogy-Petrology Burgring 7, A-1014 Vienna, Austria ustria has many small occurrences which are mineralogically |  | | Journal (article/letter/editorial) | | localities in Europe, with more than forty active granite quarries that yield numerous pockets every year (Korber...microcline, quartz, stilbite, chabazite, chlorite, fluorite, and calcite (Janeczek 2007). From the collector’s...Strzegom minerals that are especially valued are fluorite, smoky quartz, feldspars (often as Baveno twins)...of Strzegom area (approximate area of occurring granite intrusion) with Żółkiewka I quarry noted. map...view (ca. 1900–1920) showing one of the Strzegom quarries. Spirifer collection. binations such as smoky |  | | Book | | bottom, interlam1nat.d~d, carrying occasional granite pebbles, are exposed under 2 or 3 feet ot t111...Hudson and Chester Granite rr (98(42 14'25",73 01'22")65,117)--Blu.-gray otite granite. Hi erals reported...titan te i8 r.lative~1 large SJl.sunts. Grgit. Quarries (76(42 15'58",73000'43tt)~ 2 16'11",73 01'U tt...uaknown)16l,p.84)--Old Gross Quarry. Dolomite Harb e quarries (with variable amounts of calCite, phlogopite...06'02")65) ••••ell Granite QUtrrl (265(42 14'02",73 04'16")115,p.281,65)--B1otite-muscovite granite wi h pyrite |
|
