 | | Report (issue) | | GOVERN YOUR USE OF THIS DOCUMENT Your use of this Ontario Geological Survey document (the “Content”) is governed... copyright is held by the Queen’s Printer for Ontario. It is recommended that reference to the Content...Selway, J.B. and Tindle, A.G. 2008. The Georgia Lake rare-element pegmatite field and related S-type...granites, Quetico Subprovince, north-central Ontario; Ontario Geological Survey, Open File Report 6199,...670-5691 Toll Free: 1-888-415-9845, ext. 5691 (inside Canada, United States) Pubsales.ndm@ontario.ca The Purchase |  | | Journal (article/letter/editorial) | | paragenetic, and chemical data for micas from pegmatites of the Fregeneda-Almendra pegmatitic field (Central-Iberian...characterize and evaluate their petrogenesis. These pegmatites show a zonal distribution from barren to evolved...types of evolved pegmatites have been recognized: (1) petalite-rich, (2) spodumene-rich, (3) Li-mica...(5) cassiterite-rich pegmatites, plus six types of barren and intermediate pegmatites. Representative micas...compositional variability of micas from the Li-mica-free pegmatites. The Li, Rb, Cs, Be, Ta, and Nb contents of micas |  | | Report (issue) | | Beryl # 26 Garnet. 28 Cassiterite and Spodumene Muscovite Crystals DAVIDSON COUNTY Gold, Silver...Amethyst Quartz GASTON COUNTY Cassiterite and Spodumene Kyanite, Rutile, and Lazulite. • • . , 32...JACKSON COUNTY . . , . . LINCODJ COUNTY Spodumene . Iron . . . . . . . # . f . . . . \ ...Actinolite. 0 , f # Minerals of the Hamme-Tungsten District . Amethyst Kyanite 0 \ \ . .."..... . Beryl...where the green spodumene, hidden ite, was discovered. Alexander County was the only area where this mineral |  | | Book (volume) | | central segment of the Parun Field of Rare-Metal Pegmatites (after. G.K. Eriomenko and L.N. Rossovskiy, 1974)...10 Geological cross section through the central area of the Aynak Copper Deposit (after V.M. Chmyriov...by coal accumulation epochs in the Darrah-i-Suf District. Table 8 Quality of coals From Darrah-I-Suf...Pule-Khumri coal district. Table 10 Quality of coal from the Pule Khumri coal district. Table 11 Coal...Narin-Chal-Namakab coal district. Table 12 Quality of coal from Narin-Chal-Namakab district. Table 13 Water |  | | Journal (article/letter/editorial) | | delegated for that purpose. The first large display area During that period D r . Michael donated his own...o f the mineral varieties found in the Franklin area. Numerous rare species are repre sented, such as...Illustrative o f the pegmatites o f the area are a 2 ' x 3 'slab through a spodumene dike from North Carolina... Left: Calcite and galena, St. Joseph Mining district, Missouri; size, 9 1/2" x 5 1/2". Below left:...marines, rutilated quartz, and hiddenite, the gem spodumene. Other fine stones include a 200 carat Portugese-cut |  | | Report (volume) | | ............................. Formations in the area......................................... Dalton...................... Iron ores of the Richmond district............................. Eastern Massachusetts...conglomerates.......................... Woonsocket area...................................................69 71 71 72 Western border of the Carboniferous area........................... 72 General character..................................... 80 Central area. .................................*............ |
|
