GRD020XS0
M-92
Blueschist
Mesozoic › Jurassic › Middle Jurassic
161.0
-
176.0
1
Ritter 154 › Cabinet 24 › Drawer C
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Small sample of glaucophane-calcite schist. Fine-grained dark blue glaucophane and thin calcite veins cross-cut the foliation. Original description: glaucophane rock.
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Mexico
San Benito Islands, Baja
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Cross-cutting vein
5.0
plane
Cross-cutting vein
5.0
crossed
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scan
crossed
GRD020XT0: 98% glaucophane. Small cross-cutting calcite vein. Minor amount of serpentine? (C. Eichler)
N/A
Baldwin_GSAB_1992
Baldwin, S.L. and Harrison, T.M., 1992, The P-T-t history of blocks in serpentinite-matrix melange, west-central Baja California: Geological Society of America Bulletin, v. 104, no.1, p. 18-31.