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| Mineral: | Hematite |
| Description: | Contact twin on {0001}, contact plane {10-10} |
| Location: | Binntal, Wallis, Switzerland |
| Author: | C. Palache, H. Berman, C. Frondel, The system of mineralogy. Vol I, 7th edition, John Wiley & Sons, New York, 1944. |
| System: | Trigonal, point group: -32/m |
| Cell: | a: 1, b: 1, c: 2734, alpha: 90, beta: , gamma: 120 |
| 3D models by smorf.nl | |