This study aimed to characterise the morphological and chemical properties of amphiboles from airborne dust samples collected three localities in Brno its surroundings. We analysed approximately 3 g particles each sample. The mineralogical characteristics were examined by polarised-light microscopy electron microprobe analysis. All studied inorganic with length ≥ 5 μm show a ratio ≤ : 1 or diam...

Large albitite bodies associated with explosive brecciation, fenite aureoles, intrusive carbonate rocks, olivine dolerites, and copper mineralization are described from the Dead Sea rift region in the south-eastern Sinai Peninsula. The main carbonate phases comprise breunnerite and dolomite with actinolite the main phase in the fenites. Field and isotopic evidence indicates that the intrusive c...

Fibers of the amphibole mineral series have been demonstrated in the dust from an open taconite ore mine. Though the total dust levels in some places are high, exposures to fibers are below one fiber/cc. The energy dispersive X-ray spectra of the amphibole fibers correspond to those of cummingtonite-grunerite, hornblende, or actinolite. The same type and size distribution of fibers were found d...

Surface sediments at Lakes Fryxell, Vanda and Brownworth in the Antarctic Dry Valleys (ADV) were investigated as analogues for the cold, dry environment on Mars. Sediments were sampled from regions surrounding the lakes and from the ice cover on top of the lakes. The ADV sediments were studied using Raman spectra of individual grains and reflectance spectra of bulk particulate samples and compa...

Mineral phases and their content were determined in attic dust samples collected from 27 houses in the Tikveš Valley, Republic of Macedonia. By using quantitative X-ray diffraction, the principal mineral phases were determined to be the serpentinite group (chrysotile, lizardite) and amphibole group of minerals (ribecite, tremolite, actinolite) present in the attic dust samples from this region ...

Multispectral remote sensing of hydrothermal alteration in volcanogenic massive sulfide (VMS) ore systems mafic crust is relatively uncommon, part due to the short-wave infrared spectral similarity several key minerals: epidote, chlorite, actinolite, and serpentine. In this study, we developed regional mosaic generation classification workflows for Advanced Spaceborne Thermal Emission Reflectio...