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Properties of the Elements and Inorganic Compounds
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
Sulfur (orthorhombic) Sylvite Syngenite Synthetic anorthite (hexagonal) Synthetic anorthite (orthorhombic) Talc Tantalum Teallite Tellurite Tellurium Tellurobismuthite Tennantite Tenorite Tetrahedrite Thorianite Thorite Tiemannite Tin (white) Titanium Titanium(III) oxide Topaz Tremolite Trevorite Tridymite Trogtalite Troilite Tschermakite Tungsten Tungstenite Turquois Umangite Uraninite Ureyite Uvarovite Uvite Vaesite Valentinite Vanthoffite Vaterite Villiaumite Violarite Wolframite Wollastonite Wulfenite Wurtzite Wustite Xenotime Zinc Zincite Zinc telluride Zircon Zoisite
Chemical composition of phyllosilicates, amphiboles and carbonates from hydrothermally altered granitoid and metamorphic rocks in the Pezinok–Kolársky vrch Hill Sb–Au deposit, Western Carpathians, Slovakia
Published in Adam Piestrzyński, Mineral Deposits at the Beginning of the 21st Century, 2001
Chlorite replacing biotite (phlogophite and annite) and amphibole (hornblende, tschermakite and edenite). Fe2+-clinochlore is a dominant type of chlorite. Muscovite and illite–carbonate / carbonate–sulphides zones are superimposed on the chlorite zone. Hydrothermal phengitic muscovite replaces plagioclase and chlorite. In the innermost zone, carbonates and sulphides become abundant, muscovite and feldspars are replaced by illite. Carbonates (ankerite and dolomite) replacing amphibole and plagioclase.
The “intraorogenic” Svecofennian Herräng mafic dyke swarm in east-central Sweden: age, geochemistry and tectonic significance
Published in GFF, 2020
Åke Johansson, Andreas Karlsson
Amphibole shows wide compositional variation between the samples. Overall, the amphibole Mg numbers (Mg#; Mg/(Mg+Fe)) range from 0.36 to 0.69 and Si from 5.9 to 7.2 atoms per formula unit (a.p.f.u.), which covers the whole range from ferro-tschermakite via tschermakite to magnesio-hornblende (Online Appendix 2B, Fig. 5B). However, the within-sample variation is more limited. Amphiboles from sample ÅJ14:01 (Limnaren) have an average Mg# of 0.54 and Si of 6.4 a.p.f.u. (n = 13), and straddle the compositional four-way boundary between magnesio-hornblende, ferro-hornblende, tschermakite and ferro-tschermakite. The sheared dyke sample ÅJ14:07 (Herräng) is compositionally the most diverse when it comes to Si content in the amphiboles, which ranges from 6.5 to 7.2 a.p.f.u. (n = 16), whereas the Mg# varies between 0.61 and 0.69, essentially representing magnesio-hornblende. The amphiboles from sample ÅJ14:10 (Herräng) are the most silica-poor (and conversely alumina-rich), with Si between 5.9 and 6.0 a.p.f.u., and Mg# of 0.36–0.39 (n = 12), which defines them as ferro-tschermakites. Amphiboles in sample ÅJ14:16 (Fogdö) also have quite restricted compositions with Si from 6.0 to 6.2 a.p.f.u. and Mg# of 0.46 to 0.50 (n = 12), falling on the border between the tschermakite and ferro-tschermakite compositional fields.