R4: Mineral sciences of the Earth surface

[R4-12] Mixing of carbon element in iridescent labradorite feldspar

*Yasunori Miura¹ (1. Yamaguchi University/Faculty of Science (Post))

Keywords:Iridescent labradorite, Carbon content, fossil and limestone sources

Iridescent labradorite plagioclase is “environmental mineral” that can control carbon element. The recent analytical electron microscopic observations reveal that carbon element is detected in lamellar texture with higher carbon at Ca-rich lamellar parts. Possible carbon sources are expected from biological fossil and limestone (local geology) near the samples as well as air-water environments.