|
Canada | |
|
| Leiper (ed.), 1966. The Agates of North America |
|
Czech Republic | |
- Bohemia (Böhmen; Boehmen)
| Duda, Rejl, Slivka: "Mineralien", 1991 |
|
Germany | |
|
| Wittern: "Mineralfundorte in Deutschland", 2001 |
|
Italy | |
|
| Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp. |
|
Slovakia | |
- Banská Štiavnica Mining District
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590 |
|
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590 |
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USA | |
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| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Sohon, 1951. Connecticut Minerals |
|
| Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92 |
|
| Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92 |
|
| Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92 |
|
| Kunz,1892: Gems & Precious Stones of N. America, p.135. |
|
| Morrill and Hinckley, 1959. Maine Mines and Minerals vol.2 |
|
| Morrill and Hinckley, 1959. Maine Mines and Minerals vol.2 |
|
| The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 66. |
|
| The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 69. |
|
| MacFall, 1951. Gem Hunter's Guide, 1st ed. |
|
| The Mineralogist, v.4,no.7,p.18. |
|
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
|
| AmMIn 11:334-340 |
|
| http://www.omsinc.org/archives/Ore-cutts_Jan04.pdf |
|
| R&M 66:3 pp 196-224 |