TEM observations on theP1̅-I1̅ phase transition in feldspars along the join CaAl₂Si₂O₈-SrAl₂Si₂O₈

TEM investigation of Ca-rich plagioclase: Structural fluctuations related to the IFormula-PFormula phase transition

“…The natural anorthite (An 100 ) is from the same locality (Val di Fassa, also reported as Val Pasmeda, Italy) as was used by Van Tendeloo et al (1989) and Angel et al (1990). The synthetic anorthite (An 100 ) is the same sample as was characterized by Tribaudino et al (2000). Here we reinvestigated only its HRTEM image ( Fig.…”

“…Here we reinvestigated only its HRTEM image ( Fig. 6 in Tribaudino et al 2000). The An 92 Ab 8 and An 85 Ab 15 plagioclases are from the Ivrea-Verbano (Italy) mafi c complex and a dike of the Traversella (Italy) granodioritic massif, respectively.…”

“…Such superpositions can also occur if the domain sizes are comparable to the thickness of the foil (~10 nm). In these cases, overlap of the domains could result in Tribaudino et al 2000), with their intensity profi les along the traverse between points 1 and 2 in the images. The integrated areas are two pixels wide.…”

“…† Calculated from the cell parameters in Tribaudino et al (2000). reported Q od values between 0.85 and 0.88 in samples with similar composition and geological history.…”

Raman spectroscopy, phase transitions, microstructures, and mechano‐luminescence in Ca‐Sr feldspars (CaAl2Si2O8‐SrAl2Si2O8)

“…They were the subject of extensive research. [5][6][7][8][9][10][11][12][13] Other studies investigated Sr-feldspar as a host for Sr 85 radionuclide immobilization 14,15 and in fibrereinforced glass-ceramic matrix composite ceramics. 16,17 Most recently, the luminescence properties of Ca-Sr feldspars doped with REE were subject of interest.…”