"WardsSci000450"

Coarse-grained, with microcline, biotite and horblende phenocrysts.

Volcanic glass with snowflakes embedded throughout.

Dark gray, with hornblende as the dominant mafic mineral.

Coarse grained and abundant in plagioclase feldspar.

Fine to medium-grained with biotite.

Medium-grained with biotite.

Banded volcanic glass.

Gray-to-brown basaltic, with over 50% vesicles.

Sale

Light gray, with flow structure.

Glassy; most specimens float in water.