Laclede augen gneiss.

Biotite granite augen gneiss southeast of Priest River (~1575 Ma). Unit is in structural contact with surrounding rocks. Abundant alkali feldspar and high iron content indicate A-type granite composition. (Mesoproterozoic to Archean Basement Rocks).
State Idaho
Name Laclede augen gneiss.
Geologic age Mesoproterozoic
Lithologic constituents
Major
Metamorphic > Metaigneous > OrthogneissBiotite granite augen gneiss. Abundant alkali feldspar and high iron content indicate A-type granite composition.
References

Lewis, Reed S., Link, Paul K., Stanford, Loudon R., and Long, Sean P., Geologic Map of Idaho, 2012, Idaho Geological Survey, Geologic Map 9 (M-9); Scale 1:500,000.

NGMDB product
Counties Bonner