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Costa Rica | |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. Micro Probe Vol. 7 No. 7 Spring 1993 |
| Schwarzenbach, E. M., Gill, B. C., Gazel, E., & Madrigal, P. (2016). Sulfur and carbon geochemistry of the Santa Elena peridotites: Comparing oceanic and continental processes during peridotite alteration. Lithos, 252, 92-108. Schwarzenbach, E. M., Gazel, E., & Caddick, M. J. (2014). Hydrothermal processes in partially serpentinized peridotites from Costa Rica: evidence from native copper and complex sulfide assemblages. Contributions to Mineralogy and Petrology, 168(5), 1-21. |
| Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025 |
| Cook, Robert B. (1997) Connoisseur's Choice: Copper, Ray Mine, Pinal County, Arizona. Rocks & Minerals, 72 (1) 40-43 doi:10.1080/00357529709605003 |
| Specimen label in the British Museum of Natural History |
Guayabo, Mora Canton, San José Province, Costa Rica