 | | Book (edition) | | pyrite crystal makes it possible to assign it to a lower symmetry class than that of the geometric cube,...dipyramid hexagonal dipyramid (first MINERALS graphite covellite and second order) molybdenite dihexagonal...some of the contents of a unit cell must have a lower symmetry than that of the particular Bravais lattice...different physical properties (e.g., diamond and graphite). Van der Waals bonds are never the only type...how, in the passage from the upper form to the lower, the silicon atoms are more symmetrically spaced |  | | Journal (issue) | | ......................... 502 THE STIJRBRIDGE GRAPHITE MINE. By Prof. Charles Pa/ache ..........................................•...... 53 7 AGAT E OCCURRENCE IN MOZAMBIQUE .................................the sire of the Sturbridge Graphite Mine. Now an abandoned pit, this graphite deposit was certainly the...find it stated rhat this mine produced 30 tons of graphite annually ; there is also a detailed description...Southbridge and that a new company, the Massachusetts Graphite Company, was organized in 1902 co t:ike ic .over |  | | Book (edition) | | a general description of the association and occurrence of the minerals which etc., it contains is...general physical characters, together with their occurrence, associations, uses, etc., are included under...115 MINERALS ARRANGED ACCORDING TO ELEMENTS. OCCURRENCE AND ASSOCIATION OF MINERALS LISTS OF . Rocks...lines A-B and A-C, would be the more common in occurrence. include a greater or less MANUAL OF MINERALOGY...of the crystal axes when properly extended. The lower pyramid intersects the two hori- zontal axes |  | | Journal (article/letter/editorial) | | protolith compositions as well as the differences in occurrence, or preservation, of mineral assemblages, reaction...and timing of their passage through the mantle to lower crustal depths, and the subsequent exhumation to...variability indicates a “patchwork” type of pattern in occurrence, or preservation, of mineral assemblages and...in addition to the predominant and well-known graphite-bearing assemblages. Lastly is documented a decompressional...Gebauer and Friedl 1994; Friedl et al. 2004) in Lower Austria and the SvÄ›tlĂk orthogneiss (2.1 Ga protolith |  | | Book | | Aragonite (Aragon, Spain), spessartine (Spessart, Germany), and Figure 9. Axinite from Puiva, Urals, Russia...after the type locality near Spessart, Bayern, Germany. (The type locality of a mineral is the place from...dominated by {211}, from Horhausen, Rheinland-Pfalz, Germany. Field of view: 58 x 87 mm. e.g. {211}, is another...from St. Anthony Mine, Mammoth-Tiger 10x 18mm. District, Pinal County, Arizona, USA. Field of view: 33...half of the crystal and another pyramid on the lower half of the crystal, which together form a tetragonal |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE DUCKTOWN MINING DISTRICT, TENNESSEE BY W. H. EMMONS AND F. B. LANEY...-------------------------Location and area of district ___________________,_ Topography and climate ...CH~P'l'1H!. III. Geology of the Ducktown mining district, by F. B. J...aney _________________________________...24 CHAPTER III. Geology of the Ducktown mining district-Continued. Metamorphism _______________________________...__ _ Biotite ______________________________ _ Graphite _____________________________ _ Plagioclase _ |  | | Book (volume) | | Properties of Lorenzenite, Loparite, Perovskite, Titanite, Apatite, Carbonates from the Khibiny, Lovozero...elements) minerals, such as loparite, lorenzenite, titanite, apatite and others, from massifs of Kola Peninsula...Properties of Lorenzenite, Loparite, Perovskite, Titanite, Apatite, Carbonates from the Khibiny, Lovozero...which structures are based on the 2D units, is much lower. There are only ten uranyl carbonate compounds known...Armbruster, T., Danisi, R.M., Eds.; De Gruyter: Berlin, Germany, 2015; pp. 1–30. Goff, G.S.; Brodnax, L.F.; Cisneros |  | | Report (volume) | | sulphide zones._ _ ______________________ 172 Occurrence of the copper minerals_________________ 176 Copper-bearing...Arizona__________________________ 208 Note on the Bisbee district, Arizona, by F. L. Ransome_ 209 Globe and Miami...Mexico____________________ 22J Burro Mountain district, New Mexico_____________ 222 , Cananea, Mexico...Snowstorm lode, Coeur d'Alene district, Idaho__ _ 235 Encampment district, Wyoming_____________;___ 236...Queen of Bronze mine, Oregon_________ Boundary district, British Columbia : ___ 241 241 Vancouver, |  | | Report (issue) | | INTRODUCTION. reports are those on the Mercur district, by J. E. Spurr and S. F. Emmons; the Bingham...Bingham The senior author, J3. S. Butler, began district, by J. M. Boutwell, Arthur Keith, and field work on...deposits of Utah in the S. F. Emmons; the Park City district, by J. M. FIELD .WORK AND AUTHORSHIP. summer...author, G. F. Loughlin, began work in the Tintic district in 1911 in collaboration with Waldemar Lindgren...the Tin tic and Thomas ranges, of the Leamington district, and of districts in theW asatch Range. Several |
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