| | Description | |
| Comments: | Was originally reported to be coeruleolactite.
Cuprian planerite or "half-empty" turquoise. Published analysis indicates that the vacany in the 'A' site is between 0.51-0.54 atom fraction, the balance in Cu-0.40 and Zn-0.06 to 0.09, so this is indeed planerite. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 1068; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale
University 1837-1892, Volume II: 961.
Foord, E.E. & Taggart, J.E. (1998): A reexamination of the turquoise group; the mineral aheylite, planerite (redefined), turquoise and coeruleolactite. Mineralogical Magazine, 62, 93-111. | | Data | |
| Mineral Data: | Click here to view Planerite data | | Locality Data: | Click here to view General Trimble's Mine, East Whiteland Township, Chester Co., Pennsylvania, USA | | Photo Gallery | View Gallery (2 photos) |
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