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Offretite from
Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France


05157860017360851259054.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
07726460017271969594706.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
00438420017271971696013.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
00981550017271986298424.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
06217010017369908302988.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
07258280017369908307648.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
08816660017369908302903.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
00366720017369908313906.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
05157860017360851259054.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
07726460017271969594706.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
00438420017271971696013.jpg
Offretite

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
00981550017271986298424.jpg
Offretite, etc.

Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
Locality type:Mountain
Classification
Species:Offretite
Formula:KCaMg(Si13Al5)O36 · 15H2O
Confirmation
Validity:Valid - Type Locality
Associated Minerals Based on Photo Data:
Phillipsite Subgroup10
Montmorillonite7
Opal3
- var Opal-AN1
Mazzite-Mg2
Smectite Group1
Quartz1
- var Chalcedony1
Data
Mineral Data:Click here to view Offretite data
Locality Data:Click here to view Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
Photo GalleryView Gallery (50 photos)
Data Identifiers
Mindat Occurrence Record ID:141480
Long-form Identifier:1:3:141480:6
GUID (UUID V4):0
Nearest other occurrences of Offretite
13.5km (8.4 miles) ⓘMontclaret quarry, Saint-Georges-Haute-Ville, Montbrison, Loire, Auvergne-Rhône-Alpes, France
69.7km (43.3 miles) ⓘLe Volamont, Mazet-Saint-Voy, Yssingeaux, Haute-Loire, Auvergne-Rhône-Alpes, France
References
C.R.Acad.Sci.Paris,(1890) 111, 1002-1003
Betz, Volker (1982) Mont Semiol. Seltene Zeolithe aus Frankreich [Mont Semiol. Rare zeolites from France]. Lapis, 7 (12) 9-11
 
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