GRD000DS0 - Geological Teaching Collection at Scripps

Record #13 of 1592
GRD000CS0 GRD000ES0

IGSN:

GRD000DS0

Sample ID:

I-14

Sample Type:

Rhyolite

Sample Age:

Unknown
None -

Number TS:

Storage:

Ritter 154 › Cabinet 15 › Drawer G

Modifiers:

porphyry,altered

Notes:

Pink. Quartz and K-spar rich. Original description: Miarolitic rhyolite porphyry.

Ancillary Data Notes:

Series:

Location:

Photos:

Notes:

Micrographs:

Notes:

Embayed quartz in altered groundmass.

Mag:

2.5

Polarized:

plane

Notes:

Embayed quartz and altered feldspar

Mag:

2.5

Polarized:

crossed

Notes:

Mag:

scan

Polarized:

crossed

Thin Sections:

GRD000DT0: Large subhedral and embayed quartz, heavily altered Kspar (?), green mica (fuchsite). Groundmass very altered.

Documents:

N/A

References:

N/A

Geological Teaching Collection