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Gugiaite
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| Gugiaite Formula: Ca2 Be Si2 O7 Name: Gugiaite Unit cell: 7.433 7.433 4.997 90.0 90.0 90.0 , V=276.08 Space group: P-421M (113) |
Yang Z , Fleck M , Pertlik F , Tillmanns E , Tao K , Neues Jahrbuch fur Mineralogie, Monatshefte , 2001 (2001) p.186-192, The crystal structure of natural gugiaite, Ca2BeSi2O7, Locality: skarn rocks in the Gugia alkaline complex, Liaoning Province, China, Note, z coordinate of Ca is altered to reproduce reported Ca-O bond lengths
