Minor phases (<10% of the predicted phase assemblage) include sanidine
, spinel, apatite, and olivine.
One variety of lamproite, rich in enstatite, sanidine
and phlogopite, is referred to as Cancalite or Cancarixite due to its occurrence at the Volcano of Cancarix (Parga-Pondal, 1935; Fuster et al., 1967), though this term is not generally accepted.
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.
After the analyses, the soil minerals found were: quartz, calcite, sanidine
, albite, nontronite, muscovite, montmorillonite, hematite, faujasite, dolomite, microcline, anorthite, anorthoclase, clinochlore and epidote.
glass-ceramics from industrial wastes, Journal of the European Ceramic Society 26: 3335-3341.
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tuff containing sanidine
(Wilf et al., 2003, 2005).
Analysis proved the felspar to be sanidine
, a disordered potash felspar.
, Sb and ZnS were used as standards.