| | Book | Painopaikka | Printing house: Lönnberg Print & Promo, Finland ISBN 978-952-217-253-2 (sid.) ISBN 978-952-217-254-9...Geological Survey of Finland Espoo 2017 SUOMEN KORUKIVET Gemstones of Finland Kari A. Kinnunen Risto... In addition, the rock types commonly used in Finland as gemstones, are now documented in detail. Photography...demonstrate that more gemstones are known from Finland than from other Nordic countries.The great activity...gemstones and precious stones Thulite of the Talvivaara mine . . . . . . . . . . . . . . . . . 196 13 Striped | | | Journal (volume) | of euhedral schulenbergite at the Penberthy Croft Mine, Cornwall. Journal of the Russell Society, 19, 34–35...Famous British Mineral Localities: Penberthy Croft Mine, St Hilary, Cornwall, England. UK Journal of Mines...were sometimes coated with green-stained calcite or opal (see the Quartz section) and that some of the joints...this locality remains a mystery. QUARTZ VARIETY OPAL, SiO2·nH2O Granitethorpe Quarry, Sapcote Eastwood...were sometimes coated with green-stained calcite or opal. King (1973) noted that ...the quarry is now water-filled |
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