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Dordogne river alluvials, Avèze, Tauves, Puy-de-Dôme, Auvergne, France 1,5 mm twinned crystal – probably clinohypersthene : median term between the two poles of the solid solution clinoenstatite-clinoferrosilite - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 222780 View Count: 34 |
Clinoenstatite : Mg2[Si2O6] | |
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Burande brook alluvials, Singles, Tauves, Puy-de-Dôme, Auvergne, France 0,9 mm twinned crystal - probably clinohypersthene : median term between the two poles of the solid solution clinoenstatite-clinoferrosilite - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 222783 View Count: 46 |
Clinoenstatite : Mg2[Si2O6] | |
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Loire River alluvials, Gien, Loiret, Centre, France 0,7 mm crystal – A very small number of similar crystals were found in the Loire alluvials. One of them has been analysed par Emmanuel Fritsch CNRS - Nantes, France. Exactly, it is a practically median term between the two poles of the solid solution clinoenstatite-clinoferrosilite : clinohypersthene. Crystals are twinned on {100}. - Photo and ... |
| © François Périnet | Photo ID: 90315 View Count: 232 |
Clinoenstatite : Mg2[Si2O6] | |
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Loire River alluvials, Gien, Loiret, Centre, France 0,5 mm crystal – A very small number of similar crystals were found in the Loire alluvials. One of them has been analysed par Emmanuel Fritsch CNRS - Nantes, France. Exactly, it is a practically median term between the two poles of the solid solution clinoenstatite-clinoferrosilite : clinohypersthene. Crystals are twinned on {100}. - Photo and ... |
| © François Périnet | Photo ID: 90314 View Count: 413 |
Clinoenstatite : Mg2[Si2O6], Apophyllite-(KOH) : KCa4[(OH,F)|Si8O20] · 8H2O, Quartz : SiO2, Ruizite : Ca2Mn3+2[(OH)2|H2Si4O13] · 2H2O | |
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Cornwall Mines, Cornwall, Lebanon Co., Pennsylvania, USA Fibrous clinoenstatite, with hydroxylapophyllite, brown minute ruizite crystals, and quartz. Indentification according to the recent Mineral News article: L. E. Kearns and C. A. Kearns. Mineral News, vol. 24, 8-9 (2008). S415-081 #1416# 0.5 cm field of view. |
| © 2008, JGW | Photo ID: 167999 View Count: 107 |
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