Zoned, birefringent garnets from Thera Island, Santorini Group (Aegean Sea)

@inproceedings{Murad1976ZonedBG,
  title={Zoned, birefringent garnets from Thera Island, Santorini Group (Aegean Sea)},
  author={Enver Murad},
  year={1976}
}
SUMMARY. A garnetite that occurs locally in phyllitic schists exposed by the Santorini caldera consists mainly of euhedral garnet crystals showing alternating isotropic and birefringent lamellae. X-ray diffraction revealed two garnets with unit cell dimensions a of I2.o52:ko-oo2 and I~'984-ko-oo5 A, corresponding respectively to almost pure andradite and a granditic phase. Mean compositions determined by microprobe analysis are An97SplAlm~ for the isotropic and about An~aGr~aSpiAlma for the… CONTINUE READING

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