Blueschist – Location 28


 
Sample : Photo location 28
  Rock name : Blueschist (Turner, 1982)

 

Megascopic description:

Brecciated blueschist with cement of whithish minerals and garnet.

Microscopic description:

The thin section of blueschist shows the heteroblastic textures, consist of glaucophane, epidote, plagioclase, sphene, muscovite, and patches of calcite, 0.3 – 1.7 mm in crystals size, anhedral – subhedral in shape. The schistosity structure is formed by the orientation of nematoblastic minerals of glaucophane.

MACRO PHOTOGRAPH

MICRO PHOTOGRAPH

Sample: Photo location 28

PPL

XPL

The thin section of of blueschist shows the heteroblastic textures, consist of glaucophane, epidote, plagioclase, sphene, muscovite, and patches of calcite, fine to medium in crystals size, anhedral – subhedral in shape. The schistosity structure is formed by the orientation of nematoblastic minerals of glaucophane.

MICRO PHOTOMICROGRAPH

Sample: Photo location 28

PPL

XPL

The thin section of of blueschist shows the heteroblastic textures, consist of glaucophane, epidote, plagioclase, sphene, muscovite, and patches of calcite, fine to medium in crystals size, anhedral – subhedral in shape.

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