BH250-89

Slide Number: BH250-89

Number of slides: 15

Rock: Rhyolite from Baraboo Wisconsin

Major minerals: Sanidine, Quartz, Devitrified glass

Minor minerals:

Photomircrographs:

XPL1, PPL 1, 1, 2, 3, 4, 5, 6, 7, 8