 | | Journal (issue) | | Inclusions in Manufactured Glass | Opal Doublets from Slovakia | Heated Sapphires with Unstable Colour Centres...in the 450–500 nm region that is bounded by absorption bands in the visible region that arise from the...green regions with an edge in the yellow-green region caused by a prominent band at ~535 nm. Also present...present was a moderate band at ~665 nm (red region), a weak band at ~855 nm and a moderate band at ~980...quartz from Alpine-type veins in the Ganesh Himal region of Nepal that contained large biotite plates up |  | | Book (volume) | | cm1 is called the fingerprint region. Usually IR spectrum in this region contains very complicated series...overlapping bands. The importance of the fingerprint region is that each mineral species produces a different...500 to 800 cm1 can be considered as “fingerprint region” sensitive to the composition and the topological...see Fig. 1.9), but generally IR spectrum in this region is characteristic of all these minerals. In IR...(2); Zn-enriched olivenite from Novoveská Huta, Slovakia (3); zincolivenite from Lavrion, Greece (4); Cu-enriched |  | | Catalog/List | | some and polychromatic these the Simonka and Libanka, Opal made are The Precious Fire-Opal. are...5, Apatite ; 4, Fluorspar 3, Calcite 2, Gypsum 1, Talc. hardness of is stands follows: |  | | Report (issue) | | History, and Lore BY SI AND ANN FRAZIER 12 Classic Slovakia 14 Rainbows, Harlequins and Pins Afire: Play...precious opal were more than likely those in eastern Slovakia (formerly Hungary), which have a documented history...this specimen with red body color from Herl'any, Slovakia (6.2 x 5.0 cm). Collection & photo Zbynek Bufival...and Mineral Museum; photo JeffScovil Classic Slovakia Peter Huber is a high school math and computer...Dubnik, in the eastern portion of present-day Slovakia, were mined for centuries before competitionfrom |  | | Catalog/List | | was exclufound porphyritic are Simonka 17 Libanka, and cavities The in Opal value. occurring... 5, APATITE ; 4, FLUORSPAR 3, CALCITE 2, GYPSUM ; 1, To edge No 7, ascertain of stone is |  | | Book | | excellent coral was being harvested Mediterranean region. At any rate, by land or near Hyeres on the Mediterranean...a source of emerald. The most 1927 the Lataba District of northeast Trans¬ popular aquamarine color...may be found in almost any color In the Mogok district of Upper Burma, source of corundum it seems to...“hessonite” or as “cin¬ Trebenice, in the Bohemian region of Czech¬ namon stone,” because all gem-quality...another mineral. DeBeers do to diamond. The opal region of south and east Aus¬ Pearl: Edwin Streeter, |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Reference Mineral Description and Feel 1 Tale 2 3 Gypsum Calcite 4 5 6 Fluorite Apatite Orthoclase a...fingers Scratched easily with the fingernail, as gypsum Just scratched by a copper coin, but not normally...Co., Bonanza mine, Trinity Co., Michigan Bluff district, Placer Co., in AK, placers at Fairbanks, Iditarod...and quartz veins at Juneau. In Canada, Noranda district, PQ; Porcupine, Kirkland Lake, and Larder Lake...deposits, ON; Atlin and Caribou, BC; and Klondike district, YT. In Mexico, Altar and Magdalena, SON; Parral |  | | Book | | carats. It was found on the ground by a child in the region of Golconda. The Shah of Persia possesses two magnificent...to him by Oo-dwa-gee, Woon of the ruby mining district. The two best known rubies in Europe, brought... Panar and between that river Wajrah Karrur district. mouth of the Kistnah, and on brated At the...farther east, and on the northern This side district lies of the Kistnah, are the Partial almost...often used to distinguish the diamonds of this region, and sometimes as a designation of all Indian diamonds |  | | Book (volume) | | VOL.2 Bauer, Max Precious stones J FOX LAKE DISTRICT LIBRARY 2§| £ J3RAND AVENUE 60020 - PRECIOUS... Diamond-fields of the Diamantina. . . . district, Brazil .... „ 36. Occurrence of diamond in...principal ruby district of Mogok is another eight days journey, the less important district of the Sagyin...workings has been taken over by Europeans. The district was officially visited and reported upon in 1888...Transactions of the Royal Society of London. The district of Mogok is the most important “ ruby tract,” |  | | Book (edition) | | spodumene, euclase, sphene, diopside, epidote, and gypsum belong to it. Fig. 31 illustrates a crystal of...contains a strong doublet (5896, 5890 A) in the yellow region. ‘wo corresponding dark lines, D, and D,, are prominent...in general use :— SCALE 1. Talc. 3. Calcite. 2. Gypsum. | 4. Fluor. OF HARDNESS 5. Apatite. 6. Feldspar...useful to remember that the fingernail will scratch gypsum and softer substances, and that ordinary window-glass...the seeds of some plant, common in the particular region, which were nearly uniform in size and weight. |  | | Book (edition) | | experienced mineralogist to say at once from what district a given mineral has been obtained. But these...contrary it is certain that their presence in this region was known to the European eighteenth century... Lorenzo Boyes, the Clerk of the Peace of the district. Mr, Boyes knew that his friend. Dr. G. W. Atherstone...discoveries of Diamortds directed attention to this district, scarcely anything was known of its geologi cal...on the farm known as Benaudheidfontein, in the district of Kimberley. This farm was the property of |  | | Book (volume) | | quartz are made to migrate in an electric field, the region cleared of Al acquires smaller cell dimensions...and well-resolved «,%, doublets in the high-angle region. The axial coefficients of thermal expansion are...constant up to at least 1250° in the high-quartz region. The most probable values of the ratio for various...quartz appear from their manner of occurrence, as in gypsum beds and in hematite deposits formed in the meteoritic...called Gwendeln by the professional Strahlers of the region. Here they occur as free crystals crystals are |  | | Book (edition) | | registered. as of and, enigmatical was to the District. explanatory an was shewn mineralogist; ...beyond Jagersfontein. Until the to discoveries district, scarcely this characters. gical of Diamonds...depressions of or were large three size, miles. district, but 1. No. 2. No. Cape having ... actual above the covered cap, which be district, the columnar; basaltic Diamond-drift, other... of the Hall of this exhibition,” sixty district, The country they first and was said have |
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