Bryan R. Bandli

TL;DR: A 3-day short course in spindle stage techniques was recently offered at the McCrone Research Institute as discussed by the authors, where 14 students enrolled had levels of experience with spindle stages and optical crystallography which varied from novice to expert, but all were soon able to collect research quality crystallographic data on crystals less than 100 µm using a simple, home-made poster-board spindles stage and the newest version of EXCALIBR, EXCARIBR

TL;DR: The past 90 yr of scientific research directed on multiple aspects of the unique geology and environmental health issues surrounding the vermiculite deposit found at Libby, MT, shows that the majority of the amphibole mineral species present may not be any of the frog species currently regulated by government agencies.

TL;DR: In this paper, the X-ray reflections of a single crystal are reflected in the character of the Xray rotation photographs, and the index of refraction and birefringence are dependent on Mg content.

TL;DR: In this article, major-, minor-, and trace-element compositions, as determined by X-ray fluorescence (XRF) analysis, were obtained on 34 samples of vermiculite to ascertain whether chemical differences exist to the extent of determining the source of commercial products.

TL;DR: In this paper, three natural amphibole samples collected from the former vermiculite mine near Libby, Montana, USA, have been analysed by Rietveld X-ray powder diffraction (XRPD) refinement and Fourier transform infrared spectroscopy (FTIR) in the OH-stretching region.