Calcite from selected localities.
USA | |
| Smith, II R. C. (1977) |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
No reference listed | |
Ref.1) The Mineralogy of Pennsylvania 1966-1975; Robert C. Smith II; pgs 241,246. Ref.2) Rocks & Min.:60:287. |
Faylor-Middle Creek Quarry, Winfield, Union County, Pennsylvania, USA