| | Report (issue) | Queensland... New South Wales . . . Tasmania ' England 1330 150 1905 125 50 860 172 66 193 5986...America : Argentine Bolivia. ... Peru ... Europe : England ... Portugal ... Spain ... Asia : Bw-ma ... Japan... H. Collins, ' Observations 011 the West of . England Mining Region,' Tra'll,i!. Roy. Geol. Soc... Gomwa..... Franklinite ... Dialogite (Rhodochrosite) Rhodonite Percentage of Composition. manganese. .. . llnO...to such an extent that the mines in the West of England were closed down, and have since, with one or two | | | Report (edition) | principal sources of tungsten in the \Vest of England to collect new information. J\'Iessrs. Eastwood...re-written the chapters on tungsten ores of the West of England, a subject of ,vhich he has special kno,vledge...found with wolfram are similar in all the west of England districts. Wolfram frequently accompanies cassiterite...xxxiv, 1878, p. 122. ' Observations on the West of England Mining Region,' 1912, p. 72. 26 TUNGSTEN ORES...J. H. Collins, ' Observa.tions on the West of England Mining 'Region.' Pf'am. Roy. Geol. Soc. CornwaU |
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