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 (săn′ĭ-dēn′, -dĭn)
A yellow to white, glassy monoclinic mineral of the potassium feldspar group that forms from relatively high-temperature magmas.

[Greek sanis, sanid-, board (from its flat crystals) + -ine.]


(ˈsænɪˌdiːn; -dɪn)
(Minerals) an alkali feldspar that is a high-temperature glassy form of orthoclase in flat, tabular crystals, found in lavas and dykes. Formula: KAlSi3O8
[C19: from German, from Greek sanis, sanidos a board]
References in periodicals archive ?
Feldspars are mainly represented by microcline and albite, followed by orthoclase and sanidine in some samples (Table 1).
2002, Heat transfer in quartz, orthoclase, and sanidine at elevated temperature.
The XRD patterns indicate that the sanidine is mixed with other K.
Typical minerals found in lamproite rocks include forsterite, leucite, phlogopite, and iron-rich sanidine.
The hyalite-bearing layer is composed of 3-50 mm rhyolite rock fragments mixed with 1-4 mm dipyramidal fe-quartz and limpid sanidine phenocrysts in a weakly welded, porous, siliceous, tuffaceous matrix.
Analyses were calibrated using albite (Na), sanidine (Si, Al, and K), diopside (Ca and Mg), almandine (Fe), rutile (Ti), fluorapatite (P), and rhodonite (Mn) standards.
05) the relationship between the presence of sanidine and Opuntia leptocaulis and O.
Sintered sanidine glass-ceramics from industrial wastes, Journal of the European Ceramic Society 26: 3335-3341.
Oxley mineralization is an unconventional, hard-rock style of potash mineralization, hosted by a series of ultrapotassic microsyenite lavas, which typically contain more than 90% sanidine (potash) feldspar.