Pectolite from Philadelphia County, Pennsylvania, USA
USA | |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 229 |
Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 229 | |
Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 228-229 |
USA | |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 229 |
Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 229 | |
Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 228-229 |