Fine-grained rounded aggregates of chalcedonic quartz set in a matrix of chalcedony and hematite. Veinlets of chalcedony hematite crosscut the sample.
The author has given permission for this work to be deposited in the Digital Archive of Colorado College.
GY 202 Intro. to Petrology
The author has given permission for this work to be deposited in the Digital Archive of Colorado College.