Blue QUARTZ var: CHALCEDONY - Lord Baltimore Drive Quartz occurrence area, Windsor Mill, Baltimore Co., Maryland
Blue-grey Botryoidal Quartz var: Chalcedony on a grey to white Quartz, micro metallic (Hematite/Chromite?) grains with light blue Chalcedony with Quartz crystals on top and minor orange Iron Oxide staining.
Measures approximately 4.5 x 3.5 x 1.25 inch, 13.86oz. / 114 x 89 x 32 mm, 393g
Item # SP S0191221