 | | Journal (article/letter/editorial) | | VOL 47, JULY-AUGUST, 1962 PEGNIATITES AT RYRS, SWEDEN-EXAMPLES OF FLUORITE EXOMORPHISMI E. Wu. Hnrnntcu...Assrnecr Two pegmatites near Ryrs, Sweden, Skuleboda and Gundlebo, contain unusual accessory mineral...allanite, yttrotantalite, sphalerite; Gundlebo -cleavelandite, lepidolite, topaz, sphalerite, fluorite...University of Stockholm and the writer examinedthe Gundlebo and Skulebodapegmatitesnear Ryrs station, nearly...meters northwest of the Gundlebo pegmatite,dips to the east, whereasthe Gundlebo pegmatite dips about 50-60'w |  | | Journal (article/letter/editorial) | | pegmatites from Sveconorwegian terranes in southwestern Sweden Rolf L. R o m e r a'b, S t e n - A n d e r s S...Applied Geology, Luled University, S-971 87 Luled, Sweden Clnstitute of Earth Sciences, MineraL-Petrol.,... Norbyvi~gen 18B, S-752 36 Uppsala, Sweden Received 20 December 1994; revised versionaccepted 23 May...in the Sveconorwegian Province of southwestern Sweden yield U-Pb columbite ages at 1041.4 + 1.6 Ma (2o-)...with earlier U-Pb data from southern Norway and Sweden define a zonal pattern with increasingly younger |  | | Journal (volume) | | pegmatites from Sveconorwegian terranes in southwestern Sweden. Precambrian Research 76, 15-30. Simmons, W.B....pegmatites are to a large extent replaced by a cleavelandite phase. Quarrying for lepidolite, amazonite and...process of replacement of amazonite pegmatite by cleavelandite pegmatite in the Høydalen area have been discussed...is quartz-free and consists of platy albite (cleavelandite) with a 1 cm large inclusion of deep-green gadolinite-(Y)...contact with albite and quartz. There is no cleavelandite in this sample. 22 Analytical details Electron |  | | Journal (issue) | | Menzies Pink topaz from the Thomas Range, Juab County, U ta h .........................................Hungary Lowe, Paul A. - England Lyckberg, Peter - Sweden Mauduit - France Medici, John C. Megaw, Peter M...contents. The Brown Derby No. 1 pegmatite in Gunnison County, Colorado, is described by Rosenberg (1972). In...from other pegmatites (Ream, 1994). In San Diego County, California, only a few of the many gem pegmatites...one of the more interesting dike systems in the county, is a granite o f the Peninsula Ranges Batholith |
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