Keywords: Sivrihisar blueschist2.jpg Photograph by D L Whitney; photo not available elsewhere online Photomicrograph of blueschist in plane polarized light Transferred from http //en wikipedia org en wikipedia 2006-04-14 Original uploader was Fe3Al2Si3O12 at http //en wikipedia org en wikipedia Released into the public domain by the author en wikipedia Fe3Al2Si3O12 original upload log page en wikipedia Sivrihisar_blueschist2 jpg 2006-04-14 18 17 Fe3Al2Si3O12 360×270× 219032 bytes <nowiki>Photograph by D L Whitney; photo not available elsewhere online Photomicrograph of blueschist in plane polarized light </nowiki> Blueschist Glaucophane Metamorphic rocks in thin section Geology of Turkey |