div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: PowerPoint Presentation considerationpdfPyroxene Gabbro Basalt 40-50% Silica Ca-Plagioclase Pyroxene Olivine Ca-Plagioclase Amphibole Dark up up Rock Formation Diorite Rock Formation src=https:reader034vdocumentssitereader034viewer20220421015e7de3ce5fdb0932577d9f57html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: PowerPoint Presentation considerationpdfPyroxene Gabbro Basalt 40-50% Silica Ca-Plagioclase Pyroxene Olivine Ca-Plagioclase Amphibole Dark up up Rock Formation Diorite Rock Formation src=https:reader034vdocumentssitereader034viewer20220421015e7de3ce5fdb0932577d9f57html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: PowerPoint Presentation considerationpdfPyroxene 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considerationpdfPyroxene Gabbro Basalt 40-50% Silica Ca-Plagioclase Pyroxene Olivine Ca-Plagioclase Amphibole Dark up up Rock Formation Diorite Rock Formation src=https:reader034vdocumentssitereader034viewer20220421015e7de3ce5fdb0932577d9f57html5thumbnails10jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 11button div class=ts-image amp-img class=ts-thumb alt=Page 11: PowerPoint Presentation considerationpdfPyroxene Gabbro Basalt 40-50% Silica Ca-Plagioclase Pyroxene Olivine Ca-Plagioclase Amphibole Dark up up Rock Formation Diorite Rock Formation src=https:reader034vdocumentssitereader034viewer20220421015e7de3ce5fdb0932577d9f57html5thumbnails11jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 12button div class=ts-image amp-img class=ts-thumb alt=Page 12: PowerPoint Presentation considerationpdfPyroxene Gabbro Basalt 40-50% Silica Ca-Plagioclase Pyroxene Olivine Ca-Plagioclase Amphibole Dark up up Rock Formation 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