Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...abbreviations are used in this chapter: Mt. mountain Co. county IR infrared D density Dmeas measured density Dcalc...CaB3O4(OH)3·H2O Locality: Boron Open Pit, Boron, Kern Co., California, USA. Description: Colourless crystal...Mn2+BO2(OH) Locality: Franklin, Sussex Co., New Jersey, USA (type locality). Description: Pink massive aggregate...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description: |