Quartz from selected localities.
USA | |
| NJ State Geol. Ann. Rpt. (1900):176. |
NJ State Geol. Ann. Rpt. (1900): 176. | |
| Monteverde, et al. (1989) |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Rocks & Min.: 17:344. |
USA | |
| NJ State Geol. Ann. Rpt. (1900):176. |
NJ State Geol. Ann. Rpt. (1900): 176. | |
| Monteverde, et al. (1989) |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Rocks & Min.: 17:344. |