 | | Book | | Gemstonesof Peru . TO ' ..J.O[_)(ON '\J./ITI1 KY Be-51 R~GAF-P5 f JaroslavHyrsl Gemstonesof...Gemstonesof Peru GRflnil © 2012 Text by Jaroslav Hyr~I © 2012 Photos by Jaroslav Hycll (166), Fidel Salinas...No. 101040. Page Page Page Page Page Page 1: Chrysocolla mosaic in si/ver, 4.1 cm high. Col!. Z. Rosales...Coll. Z. Rosales. Photo J Hyrsl. 6 Introduction Peru is a country rich in minerals, with numerous very...Crowley et al. (1997) and most recently in the book "Peru, Paradise of Minerals" (Hyrsl et al., 2011 ). N |  | | Report (issue) | | mineral localities, with the minerals found at each mine or locality. Most mining districts and mineral localities...whole, along with those for which the specific area (mine, for instance) is not known. Other minerals, however...however, that occur in a particular part of a larger district or locality, are listed only under the area specified...Antelope District (Mineral Range). Beaver Lake District (Beaver Lake Mountains). Bradshaw District (Mineral...(Mineral Range). Fortuna District (Tushar Mountains). Gordon District (Tushar Mountains). Granite and North |  | | Journal (issue) | | exploration is largely done by local villagers, who mine selectively in creek beds. Although up to 20 ct/m3...sapphire deposits near Ambilobe, in the Antsiranana Province of northern Madagascar. In late Tertiary (?) or...is comparable to that at Ambilobe, Antsiranana Province, we can assume that to be marketable, some 90%...production of untreated rough stones directly from the mine should bring > 25 US$ per m2 of mined surface. All...Schmetzer, K., 2000. Sapphires from Antsiranana Province, Northern Madagascar. Gems & Gemology, 36(3), |  | | Journal (issue) | | 5741/gems.21.4.205. Green Prase Opal from the Kondoa District, Tanzania A historically important deposit of...early 2014 near Kwa Mtoro village in the Kondoa District; this is also in the Dodoma region of Tanzania...of prase opal (4.44 and 4.46 g) from the Kondoa District were examined for this report. Gift of Mawingu...diameter) are from a new deposit in the Kondoa District of Tanzania. Photo by Brendan M. Laurs. white...spectrum of the rough material from the Kondoa District shows a strong absorption at ~5200 cm−1 that is |  | | Journal (issue) | | studied, but some jade-like rocks do occur in the jade mine areas, for instance the locally called 'pa-lwan'...encountered in nature. The p ha se trajec tory ind ica ted here, is shown as an example, in the presence...Kayalpattinam) is a South Indian town in the Tinnevelli district (of present-day Tamil Nadu), directly facing Mannar...banks of Mannar. (In Tuticorin, in the Chidambaran district of Tamil Nadu, 347 pearl fishing has been noticeably...Wanni is north of Anuradhapura; Sabaragamuwa is a province east of Colombo. 33. Ibid. The Rajavaliya is a |  | | Journal (issue) | | i n . N g u y e n D u c Khai, born i n Vinhphu Province, Vietnam, is senior geologist of the C o u n c...1991 International Colored Gemstone Association (ICA) ~s to the congress in honor of Dr. Edward G u b...(1991)New gem-quality green zoisite anno~~nced at ICA congress. ICA Gazette, p. 1. Becltwith P.J., Hutton D.R...fluid inclusions were also observed, as were the "lily pad" inclusions characteristic of peridot. Hercynite...1981),and China (Koivulaand Fryer, 1986). "Lily Pads." The "lily-pad" inclusion is common to peridots from |  | | Book (volume) | | fringes of Greenland; in fact, there is no state or province which does not boast at least one gemstone worthy... 5 = fii? i a j — » ya y _— ’* : i mine in. q)! Y eit iia -...operator of the Little Three Mine at Ramona, and Ralph R. Potter of the Himalaya Mine at Mesa Grande provided...of the Dewey Diamond . The Murfreesboro diamond mine . A California diamond crystal . Seven corundum...Creek gravel washing . Yogo Gulch Mine . Rock Creek, Montana, sapphire mine . Cut and rough aquamarines . |  | | Book (edition) | | is better quality lapis lazuli from Badakshan district, of Afghanistan, or 2 DICTIONARY OF GEMS...agate (ageg’-it). One of the many varieties of chalcedony (cryptocrystalline quartz). Best known in its...color. See agate. jasper. Mixture of jasper chalcedony. Same as jasp- agate. agate opal. See opal...almandine AND matrix of crystalline quartz (or chalcedony quartz or both), which may also contain inclusions...(English). amber lac. Same trade green name of chalcedony Valley, California as amber varnish. Amber |  | | Book (edition) | | Beware of assembled gems. Common imitations: chalcedony p.7, serpentine p.6, vesuvianite p,3, hydrogrossular...intergrown with azurite p.3, turquoise p.5, chrysocolla p.8 / Acrylic simulants are common: see plastic...react to magnet I Typical inclusions· disc-like "lily pad", black chromite octahedrons, glassy rounded...mottled, or veined color / May be mixed with chalcedony p.7 I Spectrum: lines in blue portion at 419...INDEX 1 .544-1.553 RO SE HAWK'S EYE QUARTZITE CHALCEDONY (Cryptocrystalline) AVENTURINE P RASE / BLUE |  | | Book (volume) | | cushion cut rhodochrosite (25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern...operators, Morefield Mine, Amelia, VA; Max & Suzy Berchtold, Royal Rainbow Mine, Laytonville, CA; Ralph...Hollywood, CA; David C. & Barbara T. Smith, Four Clover Mine, Castro Valley, CA; Lita R. Smith-Gharet, Steel...Entrance to the La Toca amber mine, Dominican Republic... Figure 5. Blood Mine of-Korite: ltd: near Lethbridge...$3522.3,sne-aseseeateeMine in'San Benito County, Can tess ccraccacaerscsascn |  | | Journal (issue) | | Rainier’s footsteps: journey to the Chivor emerald mine Bill Larson Gemstones and gem mining in San Diego...from Madagascar|Aquamarine from Pakistan|Chrome chalcedony from Tanzania| Yellow dravite from Tanzania|New...(titanite) from the Darren mine located near Ambilobé in the Vohemar District of northern Madagascar. This...used to cut this stone also was found at the Darren mine. This is generally consistent with a report by Pezzotta...331. Chrome Chalcedony from Tanzania Chrome chalcedony is a rare variety of chalcedony that is typically | | | Book (volume) | | operators, Morefield Mine, Amelia, VA; Max & Suzy Berchtold, Royal Rainbow Mine, Laytonville, CA; Ralph...Hollywood, CA; David C. & Barbara T. Smith, Four Clover Mine, Castro Valley, CA; Lita R. Smitl1-Gharet, Steel...Toca amber mine, Dominican Republic........................... I3 Fig,.1re 5. Blood Mine of Ko rite....................... 15 Figure 6. Dallas Gem Mine in San Benito County, CA........................... .. ... .. .. .. .. 52 Figure 14. Red Beryl mine in the Wah Wah mountains, UT .................. |  | | Book | | crystals often found together with limonite or chalcedony re: staurolite, nglesey, ermatt switzerland)...azurite, tile ore (red copper and iron oxide) Chrysocolla copper ore CuSi03.nH20 (cf. No. 34) finely...amorphous, botryoidal, stalactitic malachite, chrysocolla Atacamite copper ore (Remolinite) CuCl2.3Cu(OH)2...French Congo, Katanga Cu3[Si309].3H20 (Congo), Peru, Chile, Blowpipe: not fusible too rare to be of...prismatic crystals, hydrated gel = copper ore chrysocolla (No. 28) U.S.A., Turkestan _ hexagonal system |  | | Book (edition) | | together with the name of the county in which the district is located. In perusing the older literature,...has to spend some time in determining to which district a certain reference applies. Attention is here...each district on the map is added to the entry in the list to facilitate locating the district. HIGHLIGHTS...except for several forms of quartz, such as agate, chalcedony, and end is in Sandoval County, at the north...composed mostly of chert, although fragments of chalcedony occur; much of the material may have had a local |  | | Journal (issue) | | Award • Inclusions in agate from China’s Sichuan Province • Unusual repair of an emerald • Yellowish green...Karl Schmetzer traces the history of the Habachtal mine during the era between World Wars I and II, using...workings were called the Königskrone (“Kings Crown”) mine. The finest topaz crystals were extracted during...mining tunnel of the nearby Grube Tannenberg tin mine. Gem-quality topaz crystals worth cutting were mostly...Famous mineral localities: The Königskrone topaz mine, Schneckenstein, Saxony, Germany. Mineralogical |  | | Journal (issue) | | the 1 / 16• tube you really need a drill press. Mine is so old that it has white whiskers, but it works...pieces, generally) at an auto glass shop. I did. Mine are 3/ t6• thick. I found out later that all plastic...said that chalcedony is difficult to carve, but that carnelian is the acme of all chalcedony. It photographs...0>11on11a Tel)hro,te 0.1 Sllele Pitchstone R-4,ta Chalcedony ChondrOdita suaSTITUTIONS - • • ,.•• , " Iha...prove anguishing under detailing. For example, chrysocolla, with its gorgeous blue color, is a favorite |  | | Book (edition) | | Olivine (peridot) Quartz (amethyst, citrine, chalcedony, etc.) Topaz Tourmaline Turquois Zircon m THE...Nebraska looks on as gem miners in the famed Mogok District of Burma, wash gem-bearing gravels. The concentrates...order to be stiff enough to be effective. and chalcedony flats with a speed and perfection of surface...orientation easier. i Iridescence. In some chalcedony nodules, deeper layers are coated with thin films...are aventurine quartz, poor grades of chrysocolla chalcedony, petrified CUTTING wood which often |  | | Book | | as part of afterdamp The gas remaining in a coal mine after an explo¬ the surveying operation, (b) The...obsolete syn. of stony-iron meteorite. variegated chalcedony frequently mixed or alternating with aerosol...phototriangulation accomplished with veins of chalcedony. Syn: jaspagate. by means of aerial photographs...in¬ p. 238). Its name is derived from Akenobe district, Japan, sertion of newly formed metasepta on...plane is (010). Cf: Ala-B twin law. in the Alexo mine, Dundonald Township, Ontario, Canada. albite-Carlsbad |
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