Fig. 2

Photographs of rodingite and metagabbro, back-scattered electron (BSE) image of rodingite, and photomicrograph of metagabbro. a Dyke-type rodingite (Ro, 131018-B) in serpentinite (Sp), consisting of green diopside and white aggregates of garnet and chlorite. The reaction zones (Rz) are developed between them. b Gabbroic texture of the dyke-type rodingite (131018-B), showing large crystals of green diopside embedded in white garnet. c Vein-type rodingite (Ro) in serpentinite (Sp), showing meandering structure, and the reaction zones (RZ) between them. d Clinopyroxene metagabbro consisting of large crystals of brown diopside and fine-grained aggregates of epidote, chlorite, and titanite. e BSE image of diopside from the rodingite, showing metasomatic development of lamellae-like garnet along the cleavage of diopside. f Photomicrograph of the clinopyroxene metagabbro under crossed polars