-The structure of a lepidolite-2Ml from Biskupice, Czechoslovakia, has been redetermined. Violations of systematic extinctions and of monoclinic equivalences plus the results of a second harmonic generation test indicate that the true symmetry most likely is C]'. The deviation of the data set from C2/c symmetry, however, proved to be too small to permit a statistically significant refinement in...

Mixed grinding with Na2S followed by water leaching was performed to extract Li from lepidolite. The leachability of Li increases dramatically in the ground mixture, regardless of the mixing ratio over the range of 1:1 to 3:1, while only 4.53% of Li was extracted in lepidolite ground without Na2S. The leachability increased with an increase of the grinding time, and ultimately, 93% of the Li wa...

Physico-chemical characteristics and industrial potentials of lepidolites from Ijero-Aramoko pegmatite fields were investigated . Systematic mapping indicates that the lepidolite is associated with steeply inclined pegmatite intruded into the basement rocks of gneisses and schistose assemblages that are in places pulsed with isolated Pan-African granite. The lepidolite has a layered structure, ...

Lepidolite is widespread in the upper crust and can be used as a lithium ore. In present study, in-situ high-temperature Raman infrared spectroscopic measurements of natural Rb/Cs-free 2M2 lepidolite pegmatite were conducted up to 700 °C for investigating thermal response lepidolite. addition, single-crystal X-ray diffraction electron microprobe analyses also determine polytype composition samp...

In order to consistently highlight the distribution and forms of finding lithium in subsoil Ukraine, its geochemistry mineralogy, genetic types deposits ore occurrences, mineralogical criteria methods their search evaluation, authors have planned a series articles. The first part quantitatively qualitatively analyzed Li occurrence existing prospective objects — Volyn deposit, Perzhansky distric...

Lithium (Li) can be found in many minerals, including lepidolite. Lepidolite is pegmatite-related tin deposits the Phang Nga area southern Thailand. According to their field occurrence, petrography, mineral chemistry, and whole-rock geochemistry, Li-bearing pegmatites granitic rocks study linked Thailand as part of SE Asian belt. The are characterized by an abundance lepidolite, K-feldspar, pla...

the granites south of mashhad are located in the north-east of iran and occur in the suture zone between the binalud and kopeh dagh areas. these s-type granites are peraluminous with an upper triassic age and include intersecting pegmatites. these pegmatites are homogenous and show simple mineralogical combinations which include k-feldspars (microcline and orthoclase), plagioclase, quartz, mica...