 | | Journal (article/letter/editorial) | | weathering or alteration of a single mineral, chalcopyrite, the dominant primary ore mineral of copper...both the mining industry and the collector, chalcopyrite forms under a wide variety of geologic conditions...exceptional with respect to the parent species, chalcopyrite. However, at one time several American localities...localities produced truly exceptional chalcopyrite specimens. One such locality is the French Creek iron...source of some of the world’s best chalcopyrite crystals. Chalcopyrite is well known as a brass-yellow, |  | | Report (issue) | | Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS Illustrations...Complex at Ilchester, Maryland. Figure 6. Triassic diabase dike forming a ridge north of Route 7 near Dranesville...11 cm long. Figure 16. Location of the Texas quarries, Texas, Maryland. Figure 17. Location of the... Figure 79. Hornfels (layered) underlain by diabase (massive) at the Manassas quarry, near Manassas;...Table 1. Minerals of the northern Virginia diabase quarries. xi INTRODUCTION "There was no talke/ |  | | Journal (issue) | | Behnke Northbrook, IL Werner Lieber Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A...slavia), C aldbeck Fells (England), SEM , Eugui quarries (Spain) $10 v .2 2 /# 3 M essina m ines (So....Hill Cu-Zn-Pb occurrence known locally as the “Chalcopyrite Room ” is remarkably complex, with 50 species...locality known to local collectors as the “ Chalcopyrite R oom .” The name derives from the most prominent...occurs which is still under investigation. The Chalcopyrite Room lies below the east terminus of the 1220 |  | | Report (issue) | | magnetite, ilmenite, chromite, pyrrhotite, and chalcopyrite occur. These have been regarded in the past...limestones the shales, etc., most. effect of a diabase dike may be practically nil, where under other...magnetite, ilmenite, rutile. Sulfides: pyrite, chalcopyrite, pyrrhotite, pentlandite; Element: DYNAMIC-METAMORPHS...Zeolites are of common occurrence in the Triassic diabase quarries of Adams, Lancaster, Berks, and ; Hydrous... spinel; Sulfides: pyrrhotite, pentlandite, chalcopyrite Elements: diamond, iron, platinum. ; HYDROTHERMAL |  | | Book | | torms, rounded edges, and blue opalescence. ChalcopYrite (76(locality uncertaln)16l,p.l07)~ One inch...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...pyroxene-hornblende. carrying.uch pyrhottite and a little chalcopyrite, considerable coarse granular calcite and graphite...limestone quarries 74(42 21' 34·',73 22'12"--Cone Hill )--One quarry at this location. Two quarries 260 feet |  | | Report (issue) | | apatite, azurite, bomite, bastnaesite, cerianite, chalcopyrite, chlorite, chrysocolla, clinzoisite, cuprite...weinschenkite zircon. APPOMATTOX COUNTY: bornite, chalcopyrite, chrysocolla, hematite, limonite, magnetite...naesite, beryl, betafite, biotite, bronzite, chalcopyrite, chrysocolla, clinozoisite, columbite-tantalite...bornitc, bytownitc, chalcanthitc, chalcocite, chalcopyrite, chalcosideritc, chloritoid, copper, corundum...amphibole, andalusite, ankcrite, barite, calcite, chalcopyrite, chalcosiderite, chlori toid, cryptomclane |  | | Book (edition) | | opened or systematically vvorked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...example, looks like freshly polished brass, chalcopyrite looks like brass that has discolored a bit, | | | Book (edition) | | opened or systematically worked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...example, looks like freshly polished brass, chalcopyrite looks like brass that has discolored a bit |  | | Book | | Alberene and Old Dominion quarries, Albemarle County. In these two soapstone quarries, tabular ilmenite crystals...6 X 1.8 x 2.8 cm (Pekov, 1994a). Malad-Kurar quarries, Mumbai [Bombay], Maharashtra. Ilvaite occurs...in the 1960s (Birch, 1999). IMITERITE EUROPE GERMANY Ramsbeck district, Nordrhein-Westfalen [Sauerland]...the jamesonite mats (Zacek and Oplustil, 1992). GERMANY Kuhberg quarry, Neumiihle, Thiiringen. The Kuh...more generally marketed (1992: 276, 435). EUROPE GERMANY Kausersteimel mine, Kausen [Siegerland], Rheinland-Pfalz |  | | Report (issue) | | Gregory Herman6 and John Curran6 1A1-4G3 1. Diabase and Brunswick basalt in the Watchung zone 1A1-1F4...Apx-Apxiv Appendix 1. Diabase and Brunswick basalt in the Watchung zone 1A. Well 1 –- Diabase, Lambertville City....................... 1B. Wells 2 through 5 –- Diabase framework, East Amwell Township.................................................. 1C. Well 6 – Diabase, Hopewell Township............................................................... 1D. Well 7 – Diabase, East Amwell Township......................... |
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Diabase quarries, Bösenbrunn, Vogtlandkreis, Saxony, Germany