 | | Book | | look for. Michael O’Donoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...Darker and even poorer in silica than diorite is gabbro, containing a calcium-rich plagioclase and pyroxene...Granite Nepheline syenite Syenite Dio rite Gabbro Peridotite 13 Dunite Serpentinite Rhyolite...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either |  | | Book | | and rocks are formed. RIGHT: Malachite with chrysocolla, Majdanpek, Serbia ¢ tixex7 cm LEFT: Fluorite...A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities |  | | | | pyroxene, chlorite, talc, clay, chrysotile, chrysocolla, quartz, lazurite are the examples included....(dark blue), p. 156 lazurite (blue), p. 236 chrysocolla (blue green), p. 216 sodalite (blue), p. 234...rhyolite (p. 256) Medium diorite (p. 250) Dark gabbro (p. 252) andesite (p. 260) basalt (p. 262) obsidian... In the southern prairies and the St. Lawrence valley, this fragile layer of sediments produced fertile...Township, Cochrane District, Ontario; Darwin Mine, McMurray Township, Algoma District, Ontario; nuggets |  | | Catalog/List | | ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...marble ..... . Connecticut Canaan, New England Lime quarry Silky white xl prisms in dolomitic marble .......material ........... Arizona Cochise Co. , Swisshelm district Rich brown to gray massive, some with minor cerussite...aluminum silicate Calilornia Placer County, Grass Valley Hornblende Norite Broad white crystal sections...chloro-phosphate :\'ew Hampshire Grafton Center, Ruggles quarry Olive green masses in pegmatite ....... Fl. APOPHYLLITE | | | | | chromates 55, 63 chromite 24 chrysoberyl 24, 24 chrysocolla 105, 106 chrysolite 75 chrysotile /07, 108 cinnabar...traditionally been accepted that mercury, opal, and chrysocolla, among others, should be grouped with the minerals...rocks rich in magnesium and poor in silica, such as gabbro and peridotite. It is normally found in granules...brownish black, at Freiberg and Andreasberg in Germany, and also in the United States (Arizona). Antimony...found at Butte, Montana, and the Copper River district of Alaska. A much rarer mineral is covellite, |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite...at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical areas acanthite may occur...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |  | | Book | | 92, 93 chromates 55, 63 chrysoberyl 24, 24 chrysocolla /05, 106 chrysolite 75 chrysotile /07, 108 cinnabar...liquids, and those we have traditionally chrysocolla, the mentioned been accepted among others...found in igneous rocks rich in magnesium and gabbro granules and and poor in silica, such as peridotite...brownish black, at Freiberg and Andreasberg in Germany, and also in the United States (Arizona). Antimony...found at Butte, Montana, and the Copper River district of Alaska. A much rarer mineral is covellite, |  | | Book | | by Gloucester Typesetting Co. Ltd. Printed in Germany Contents Translator's Foreword 4 Foreword ...known in some parts of the Continent, including Germany. Ore: Ores are deposits of minerals, which contain...hardness. Each mineral will scratch those in a lower division on the scale and can be scratched by those...prisms and pyramids. Occurrence: England, Scotland, Germany, Alps, Urals, Brazil, Madagascar. Quartz is important...twinning (No. 7). Occurs in England, Scotland, Germany, Alps, Norway, Sweden. Microcline has the same |  | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...between that of the sample and that of the next lower grade. In this case we consider the hardness to...Different scratch hardness on kyanite 20 somewhere lower grade adding a half-grade to it. Although the determination...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...identification. Nobody should be discouraged by initial bad luck, it is sometimes difficult even for an expert |  | | Book | | Council Glossary of the minerals of the Lake District and adjoining areas B. Young NEWCASTLE UPON...booksellers A Glossary of the Minerals of the Lake District and Adjoining Areas B. Young Introduction The...covered by this glossary includes the central Lake District , the adjoining west Cumbrian coal and iron ore...Ennerdale, Shap and Skiddaw form part. Sediments of Lower Carboniferous age, locally with some contemporaneous...wide area on the Wand N flanks of the Lake District. These Lower Palaeozoic rocks are succeeded unconformably |  | | Book | | brown), p. 182 azurite (dark blue), p. 156 chrysocolla (blue green), p. 216 lazurite (blue), p. 236...Medium diorite (p. 250) andesite (p. 260} Dark gabbro (p. 252) basalt (p. 262) obsidian (p. 266) Sedimentary... In the southern prairies and the St. Lawrence valley, this fragile layer of sedin1ents ,,,. produced...McIntyre Mine, Timmins, Tisdale Tp., Cochrane District, Ontario. Width of specimen: 10 cm Pyrite (fool's...Ontario; Darwin Mine, McMUJTay Township, Algon1a District, Onta1io; nuggets occur in placer deposits in |  | | Journal (volume) | | G. Tindle 23-25 PAPERS Danburite from Meldon Quarry, Okehampton and other UK localities Michael S....head of the Dale Beck Valley in the Caldbeck Fells of the northern Lake District and include workings...the workings in Iron Crag (which terminates the valley). As part of an ongoing survey of the mines of...Roughton Gill is the largest mine in the Dale Beck valley and one of the largest in the whole of the Caldbeck...workings and trials at the head of the Dale Beck Valley. The need to address these problems, combined with | | | Book | | chromates 55, 63 chromite 24 chrysoberyl24,24 chrysocolla 105, 106 chrysolite 75 chrysotile 107, 108 cinnabar...traditionally been accepted that mercury, opal, and chrysocolla, among others, should be grouped with the minerals...brownish black, at Freiberg and Andreasberg in Germany, and also in the United States (Arizona). Antimony...found at Butte, Montana, and the Copper Rjver district of Alaska. A much rarer mineral is covellite,...Switzerland. Good crystals ll occur at Freiberg in Saxony, Cavnic in Romania, Schwaz in the Tyrol (Austria) | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...that of the next lower grade. In this case we consider the hardness to be of the lower grade adding a half-grade...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...identification. Nobody should be discouraged by initial bad luck, it is sometimes difficult even for an expert...should preferably be more detailed, e.g. walls of a quarry, or refuse heap specimen, so that one could find |  | | Journal (article/letter/editorial) | | as the Picher district, which is in the Oklahoma portion of the TriState. This district has probably produced...and Schleicher 1961). Watonga, Universal Atlas quarry, 6 mi. NE of Watonga, Nescatunga Gypsum of the...1944). Canadian County Calumet, Scheiter gypsum quarry, 7.5 mi. N of Calumet, SE1/4 sec.2, T. 14N, R.9W...(Gilmore 1963). Fletcher, Texas Gypsum Company quarry, SW1/4 W 1 / 4 sec.11, T.4N, R.lOW, 60-foot gypsum...15W, Cambrian-age Quanah Granite pegmatite and gabbro: bornite, chalcopyrite, copper, cuprite, pyrrhotite |  | | Catalog/List | | chlorophosphate New Ham.12shire Graf ton Center, Ruggles quarry ...... Olive green masses in pegmatite ...... ARAGONITE...$1. 50. New Mexico Socorro County, Hansonberg district Large white crystal sections, select ....... ...................... . Southern Rhodesia Miami district Yellow-green hexagonal crystal prisms from l"...aluminosilicate New Jersey Phillipsburg, Royal Green quarry Olive green coarse micaceous plates with serpentine...plate ........ . " BISMUTH Native bismuth Germany, Saxony, Schneeberg Gray metallic plates·tn cobalt |  | | Book | | specific gravity are again defined as groups for the lower section of the multicolored margin bar. As man y...minerals as possible are included in each group. The lower section of the margin bar is fitted with a scale...crystals, and weathered surfaces can give a false lower hardness. After the test scratch, a powder-like...zircon and sphene, where double refraction at the lower edge of the crystal can be observed with the naked... 3◄ 4 ◄ 5 ◄ Sassolite boric acid G) Death Valley, California/ USA B(OHb Streak white. Mohs' hardness |  | | Report (issue) | | crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...Philadelphia: Fairmount Park, Frankford, and Rit- enhouse quarry. SCOLECITE CaAl 2 Si3 Oi .3H 2 O MONOCLINIC ...white radiating tufts; Delaware County: Ward's quarry, mealy white radiations. DESCRIPTIVE MINERALOGY...mines, the corundum mines at Unionville, Brinton's quarry south of West Chester, and the French Creek iron...error. good index of the character of the analysis, bad summation being be considered good, other things |  | | Book (edition) | | scale to soapstone at the other. There is a still lower limit in liquids and gases; but of the hardness...the planes of the trisoctahedron in Fig. 21. The lower one of the three on the upper front solid angle...by a constant ratio, and the expression for the lower right one of the six planes will be 3c f & la. By...planes will remain essentially the same. In Fig. 10, bad the plane lettered | been made the plane 1, then...being here directly over those suppressed in the lower pyramid. APATITE. If the student will shade over |  | | Catalog/List | | inclusions. 1/2" to lxl'' $3.50, $5.00and $7.50 ...... Germany East Prussia, Palmni.cken, Baltic Sea. Fossil resin...silicate. Connecticut Canaan , New England Lime quarry. Fl. White crystal prisms in dolomitic marble ................. . Pennsylvania Easton, Williams quarry. White fibrous with calcite, asbestos-like. New...display specimens ... New Jersey Paterson, Lower New Street quarry. White trapezohedral crystals in groups...Lead sulfate. Arizona Cochise County, Swisshelm district. Rich gray-to-tan replacement of galena with nodular |  | | Catalog/List | | -rixl-t".£3.25. 7. APATITE. Etiro Mine Karibab District, S.W. Africa. Unusual turquoise blue pure lustrous...38. 39. 40. 41. ohiO~3~.S.A. cAL.CITE. PUgl1 Quarry, Castar, A large translucent pale sherry' coloured...associated with 0 little Quartz and bluish green Chrysocolla. 2x2xlt".£l.25. CHALCoCITE. Levant Mi.ne, Pendeen...pyramidal milky Quartz crystals. ytx~lt". £9.00. CHRYSOCoLLA. Live Oak Pit, Gila Co., Arizona, U.S.A. Very...around f" in size, thickly lining a 1" cavity in Gabbro matrix. 2xlt-". £1.50. PRoUSTITE. Poorman Mine |  | | Catalog/List | | two earlier catalogues, but now offered at even lower prices. Additionally, I have included some specimens...golden-yellow nodule, A/20. ANALCIME. Enderby Quarry. Leicestershire. This specimen is more interesting...2.5x2x1.25", £4.00 1. ANALCIME/NATROLITE. Dean Quarry, St. Keverne, Lizard, Cornwall. Pearly white to...to about 0.75" in size developed on surface of Gabbro matrix plus, minor crystalline Natrolite and Calcite...75x1", £7.50. 2. ANALCIME/NATROLITE/CALCITE. Dean Quarry, St Keverne, Lizard, Cornwall. Pearly white, large |  | | Journal (article/letter/editorial) | | the two earths. D. B. Notes on Specimens of Chrysocolla. By TV. H u ~ Hc I X G ~ (Chcm. 2\ITezc.s...are found in Lower California, consisting of two very distinct varieties of chrysocolla, one part being...mineral of these deposits is doubtless “ true chrysocolla ” mixed wit,h large amounts of opal silica, and...already described as occurring in the chrysocolla-ore from Lower California, a small quantity of what...found only in thin layers, alternating with chrysocolla and fibrous gypsum. D. B. On two New Miobates |  | | Book | | names like granogabbro (granite-gabbro), monzogabbro (monzonite-gabbro), rhyodacite (rhyolite-dacite)...[Vulcan, Roman god of fire], plutonite (Pluto and the lower world), and Pele’s hair (Hawaiian fire goddess)...tribal peoples: bojite (Boii, Celtic tribe in Germany), gondite (Gonds, central India), onkilonite (Onkilones...sthene) are the essential constituents; differs from gabbro by the presence of the Definition proposed prthopyroxene...lUGS, plutonic rock satisfying the definition of gabbro, in which pl/(pl + px + ol) is 10-90 and the opx/(opx |  | | Journal (issue) | | Behnke Northbrook, IL Werner Lieber Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A...Number Five Articles The Val Graveglia m anganese district, Liguria, I t a ly .............................RHODOCHROSITE crystals to 1.6 cm, from the Uchucchacua district, Huanuco depart ment, Peru. (See vol. 28, no...Italy. 1— Cassagna mine 2—Gambatesa mine 3— Molana quarry 4— Molinello mine 5— Monte Bardeneto prospect 6—...and occasionally fine minerals. The manganese district of Val Graveglia in northern Italy produced over |
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