Fibrous tremolite is a mineral species belonging to the amphibole group. It is present almost everywhere in the world as a natural contaminant of other minerals, like talc and vermiculite. It can be also found as a natural contaminant of the chrysotile form of asbestos. Tremolite asbestos exposures result in respiratory health consequences similar to the other forms of asbestos exposure, includ...

Feldspar minerals are the most common rock formers in Earth's crust. As such they play an important role in subjects ranging from geology to climate science. An atomistic understanding of the feldspar structure and its interaction with water is therefore desirable, not least because feldspar has been shown to dominate ice nucleation by mineral dusts in Earth's atmosphere. The complexity of the ...

Activity–composition (a-x) relations for feldspars petrological calculations in KAlSi3O8−NaAlSi3O8−CaAl2Si2O8 are calibrated using literature data (i) plagioclase cation exchange experiments at 600 and 700°C, (ii) experimental ternary feldspar pairs 880 − 900°C, (iii) the alkali solvus, (iv) dry melting loop plagioclase. The results tested against calorimetric heat of solution pressures coexist...

Alkali feldspars are routinely used in retrospective dosimetry using luminescence methods. However there is a signal loss over time, termed ‘anomalous fading’, which results age underestimation if uncorrected. Although significant improvements have been made recent years, dating of remains challenging. This paper investigates the relationships between chemistry, structural state and scale exsol...

Feldspar (alkali feldspar and plagioclases) in recent years feldspathoid minerals are used as raw materials the ceramic-glass industries. The igneous rocks such granite, syenite foid which mainly contain these have potential to be materials. Some inclusions within feldspatic affect extremely negatively desired values for material. In this study, effective processes alteration of Özvatan syenite...