Hornblende Included in Quartz
John Betts - Fine Minerals
Transparent Quartz with many crystals of black Hornblende included running throughout. Ex. John A. Manley ca. 1890s. This very much resembles Tourmalinated Quartz.
Cumberland, north of Pawtucket, Providence County, Rhode Island
4.0 x 2.5 x 2.0 cm.