new york mineralogical club - official alfredo petrov.pdf · is composed of aio octahedra and seo...

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Page 1: New York Mineralogical Club - Official Alfredo Petrov.pdf · is composed of AIO octahedra and Seo triangular pyramids, with two adjacent AIO octahedra linked by three triangles to
Page 2: New York Mineralogical Club - Official Alfredo Petrov.pdf · is composed of AIO octahedra and Seo triangular pyramids, with two adjacent AIO octahedra linked by three triangles to