|
USA | |
| Morgan, L. A., & Shanks, W. C. (2008). Where magma meets limestone: Dagger Flats, an example of skarn deposits in Big Bend National Park. Geological, Geochemical and Geophysical Studies by the US Geological Survey in Big Bend National Park. US Geological Survey Circular, 1327, 43-55. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Rocks & Minerals: 66(3): 196-224. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622 |
Martin Marietta Materials Cement quarry, Midlothian, Ellis County, Texas, USA