Letters. Rock-forming moissanite (natural α-silicon carbide)

  title={Letters. Rock-forming moissanite (natural $\alpha$-silicon carbide)},
  author={Simonpietro Di Pierro and Edwin Gnos and Bernard Henry Grob{\'e}ty and Thomas Armbruster and Stefano Michele Bernasconi and Peter Ulmer},
  journal={American Mineralogist},
  pages={1817 - 1821}
Abstract We report the first occurrence of moissanite (SiC) as a rock-forming mineral (8.4 vol%) in one unique specimen of a terrestrial rock. The sample has a homogeneous, porphyritic texture, and was found as a beach pebble thought to be derived from a Tertiary volcanic province of the Aegean Sea region. The matrix is bluish-colored and consists of very fine-grained brucite, calcite, and magnesite, in which macrocrysts of quartz (25.3 vol%) and moissanite are found. Other accessory phases are… 

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