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Minera II Quarry, Las Cabezas de San Juan, Seville, Andalusia, Spain
Recent analysis (XRD) have confirmed that the amphibol belongs to the ferro-actinolite-tremolite series, closer to the end member of the series. It must be said that there is no a complete certainty because with complex amphiboles like these further analysis would be neccessary (Polarised-light microscopy and EPMA).
Mineral List
| Albite 'Ferro-actinolite-Tremolite Series' | Fluorapatite Prehnite | Titanite |
5 entries listed. 4 valid minerals.
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External Links
http://www.foro-minerales.com/forum/viewtopic.php?t=7693 (data from the XRD analysis and discussion, in Spanish language)
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Locality Updated: Stetind pegmatite, Tysfjord, Nordland, NorwayFrom Uwe Kolitsch, 23rd May 2013 08:03:43