Description

Notes: 4 boxes, 14 tubes, 4 jars, 1 large box, 122 slides. Small rhyolite pebble with phenocrysts of quartz, oligoclase, orthoclase and altered biotite set in a glassy groundmass showing flow structures. Also containing a zenolith of fragmented rock

Citations: Finkleman, R.B., 1970, Sci. 167, 982-984