Syenite, Layered. Klokken, Greenland.

This is a thin section of a layered rock of syenitic composition from the Klokken intrusion in Greenland. Layers of coarsely perthitic feldspar (of an unusual but characteristic texture) and ferrohedenbergite with accessory apatite and (I think) aenigmatite. Very striking, excellent slide, highly recommended.

1 Slide

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