Brian Kosnar Mineral Classics

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

quartz (var: chalcedony) / (var:agate) / ("grape chalcedony / grape agate")

brookite

microcline (var: amazonite)