GRD02B4S0

M-242

Anorthosite

Precambrian › Proterozoic
542.0 - 2500.0

1

Ritter 154 › Cabinet 16 › Drawer F

-

Coarse-grained. Labradorite with interstitial green pyroxene and trace pyrite.

-

-

-

-

Hornblende rim around large opaque

2.5

plane

Hornblende rim around large opaque

2.5

crossed

Plagioclase, some with crystallographic controlled twinning or inclusions. Small vein of opaques with hornblende rims.

5.0

plane

Plagioclase, some with crystallographic controlled twinning or inclusions. Small vein of opaques with hornblende rims.

5.0

crossed

-

scan

crossed

GRD02B4T0: Huge plagioclase, some with crystallographic controlled twinning or inclusions. Trace amount of opaques with hornblende rims. Interstitial clinopyroxene (?). Altered sample. (J. Gee)

N/A

N/A