Latitude: 32°54'53"N
Longitude: 110°44'13"W
This is the original Malpais Hill locality. It is within a railroad cut of the Copper Basin railroad, through the eastern flank of Malpais Hill in basalt rock. Mineralization is in miarolytic cavities and voids between basalt masses/pillows. NOTE: Accurate GPS coordinates obtained January, 2007, by Mr. Ron Deblois.
References
Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, Arizona Geological Society Digest: 3: 53-56.
Thomssen, R.W. (1983), The minerals of Malpais Hill, Pinal County, Arizona, Mineralogical Record: 14: 109-113.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 156, 160, 250, 351.
Mineral List
11 entries listed. 6 valid minerals.
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