GRD01XJS0 - Geological Teaching Collection at Scripps

Record #7 of 15
GRD01XIS0 GRD02BYS0

IGSN:

GRD01XJS0

Sample ID:

M-42

Sample Type:

Ga-bearing Schist

Sample Age:

Unknown
None -

Number TS:

Storage:

Ritter 154 › Cabinet 14 › Drawer D

Modifiers:

coarse-grained

Notes:

Medium-sized sample of biotite-quartz-amphibole-garnet schist. Weakly-foliated. Porphyroblast-rich schist?

Ancillary Data Notes:

Series:

Location:

Photos:

Notes:

Micrographs:

Notes:

Acicular opaques and amphibole microcrysts in a large amphibole

Mag:

2.5

Polarized:

plane

Notes:

Acicular opaques and amphibole microcrysts in a large amphibole

Mag:

2.5

Polarized:

crossed

Notes:

General texture - Biotite and amphibole with interstitial quartz

Mag:

2.5

Polarized:

plane

Notes:

General texture - Biotite and amphibole with interstitial quartz

Mag:

2.5

Polarized:

crossed

Notes:

Mag:

scan

Polarized:

crossed

Thin Sections:

GRD01XJT0: Abundant scaly biotite. Very large, green amphibole. Interstitial quartz. One large inclusion-rich garnet near the side of the TS. Acicular opaques and amphibole microcrysts in the hornblende. (C. Eichler)

Documents:

N/A

References:

N/A

Geological Teaching Collection

Geological Teaching Collection

IGSN: GRD01XJS0 Sample ID: M-42 Permalink