 | | Journal (article/letter/editorial) | | the world. Exceptional specimens from Mississippi Valley-type deposits, such as the famous Elmwood mine...magnificent pink fluorite (see fig.) from the Mont Blanc region of France has been chosen as this issue’s Connoisseur’s...base metals or more rarely uraninite; Mississippi Valley-type deposits where it is found with galena, sphalerite...brookite, adularia, sphene, epidote, fluorite, hematite, and essentially incomparable quartz crystals...to fissures in granites or felsic gneisses. Switzerland boasts a large number of cleft fluorite localities |  | | Journal (issue) | | slopes of the Lelatema Mountains in the Manyara Region, about 70 km southeast of the town of Arusha, Tanzania...town of Brandberg, Daures Constituency, Erongo Region, Namibia. The occurrence was discovered in the...ex Jack Halpern; Tom Spann photo. Figure 40. Hematite with uvite and magnesite, 11.2 cm, from the Brumado...volume 54, January–February, 2023 Figure 45. Hematite in quartz (polished), 5.9 cm, from an unknown... Figure 91. Elbaite, 6.4 cm, from Jequitinhonha Valley, Minas Gerais, Brazil. Under the right conditions |  | | Journal (article/letter/editorial) | | is macrocrystalline quartz leaving a final small region of empty space (fig. 2 b). This growth pattern...continuity of texture throughout the horizontal region. The microtexture similarity indicates that the...bar = 1 cm. Figure II, region a i, the contrasting wall-contact layer; region ii, a false start in the...band shown in I; region iii, the fibrosity starts and continues unhindered. Region b, macrocrystalline...be identified using X-ray diffraction. Hence, hematite and goethite are respectively assumed. The exposed |  | | Journal (issue) | | Schwarzwald, Germany. (10) Hematite “iron rose,” 3 cm, from St. Gotthard, Switzerland. (11) Tourmaline, 2.6...West mine, Congo Republic. (7) Sodalite, Kokcha Valley, Afghanistan. (8) Scorodite, Tsumeb mine, Namibia...thumbnail mineral specimens” published in the Antelope Valley (California) Gem and Mineral Club bulletin, mentioned...sub-collections of calcite, quartz, pyrite and hematite, one species per shelf. Wilson photo. Refined...Svätodusna deposit, Lubietová, Banská Bystrica Region, Slovakia. Will and Rika Larson collection; Robert |  | | Journal (issue) | | on June 12, 2018. 3 Fluorite, Frunthorn, Vals Valley, Switzerland, 5 cm Photo: Malte Sickinger MARCUS...budil@monaco.mc Quartz var. Gwindl, Galenstock, Uri, Switzerland, 9 cm Photo: Malte Sickinger MARCUS BUDIL Monaco...mined in the “Sisapo” region in Spain, corresponding to the region of the Alcudia Valley and the area where...special mention made of the mines of the Sisapo region. Dioscorides (1st century A.D.) was the first to...workings during the Roman colonization of the Sisapone region. In fact, the Almadén district was known as “Sisapo” |  | | Report (issue) | | pocket at the Elmwood mine. Photo Mark Kielbasa Switzerland BY HANS ANTON STALDER best of the AMERICAS ...Erich Offermann is a retired lawyer from Basel, Switzerland, who has a lifelong interest in crystals and...fluorite crystals found in Germany's Black Forest region. The locality is known as Teufelsgrund im Muldental...literally translated is "Devil's Ground in Mulden Valley;" we thus thought it not too much a stretch to...Hell." The Mulden Valley is actually a small lateral tributary of the lower Munster valley, not far from |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Mi11eml Discm•t•ries, /960--20/ 5 ONTARIO Bentley Lake Road occurrence, Faraday Township, Hastings County...vein-dike digging site which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened...( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite...lustrous, though some which are coated by rutile or hematite are yellow or red and earthy; they are equant |  | | Journal (issue) | | specimen-collecting aspects of the Colombian emerald-mining region. The Mineralogical Record, volume 47, January-...of Muzo, occupies both slopes of a funnel-shaped valley above the little Itoco River, at elevations ranging...at 2300 meters above sea level, overlooking the valley of the Gauvi6 River, itself at 700 meters above...growth with man-tall fems. Pogue (1917) called the region "in general ... unhealthful; the natives suffer...later make sacrifice to the gods by diving into Lake Guatavita, allowing the gold to wash off. Other |
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