div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: New York Mineralogical Club - Official Alfredo Petrovpdf · is composed of AIO octahedra and Seo triangular pyramids with two adjacent AIO octahedra linked by three triangles to src=https:reader033fdocumentsusreader033viewer20220503155f779c1e7fd5c04e502aa023html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: New York Mineralogical Club - Official Alfredo Petrovpdf · is composed of AIO octahedra and Seo triangular pyramids with two adjacent AIO octahedra linked by three triangles to src=https:reader033fdocumentsusreader033viewer20220503155f779c1e7fd5c04e502aa023html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv