A catalogue of the mineral species in the National Museum of Natural History, Sofia (Part 3): Borates; Phosphates, Arsenates and Vanadates; Wolframates and Molybdates; Sulphates, Selenites and Tellurites; Chromates; Carbonates; Nitrates and Iodates; Organic minerals

The third part of the catalogue includes mineral species from the last eight mineral classes: Borates; Phosphates, Arsenates and Vanadates; Wolframates and Molybdates; Sulphates, Selenites and Tellurites; Chromates; Carbonates; Nitrates and Iodates; Organic minerals, in the collection of the National Museum of Natural History, Sofia. The collection comprises 319 species and 17 varieties.