(Specord 75 IR or Specord M80, Carl Zeiss, Jena, Germany), Perkin Elmer 1600 Series FT IR spectrometer or...FT IR spectrometer (Bruker Optics, Ettlingen, Germany). IR spectrum of a pure KBr disc was subtracted... Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province... Hydroboracite CaMgB6O8(OH)6·3H2O Locality: District # 99, underground mine, Inder boron deposit, Atyrau...Mg3B7O13Cl Locality: Wandsleben, Saxony-Anhalt, Germany. Description: White to beige fine-grained aggregate |
Kohnstein Quarry, Niedersachswerfen, Harztor, Nordhausen District, Thuringia, Germany