Anthophyllite from
USA | |
| Van Gosen, Bradley S. (2005) Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the eastern United States. USGS Open-File Report 2005-1189. |
| Stuart Herring |
| Mineralogical Record, 25(2),pp:105-120. |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 181 |
| Gordon - Min. Penn. (1922) p. 187 |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 188 |
| Joe Dunleavy (Pers. Comm.) |
Gordon's Mineralogy of Pennsylvania (1922) p. 191 | |
| Gordon, 1922. The Mineralogy of Pennsylvania |
Mineral Hill, Elwyn, Middletown Township, Delaware County, Pennsylvania, USA