Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Phillipsite Subgroup from
Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany


Locality type:Mining Area
Classification
Species:'Phillipsite Subgroup' (not an IMA approved species)
Formula:(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Phillipsite Subgroup data
Locality Data:Click here to view Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:616677
Long-form Identifier:1:3:616677:9
GUID (UUID V4):0
Localities for Phillipsite Subgroup in this Region
Xenolith CS-008 (Bellbergite type-locality), Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
Nearest other occurrences of Phillipsite Subgroup
0.3km (0.2 miles) ⓘXenolith CS-008 (Bellbergite type-locality), Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.4km (1.5 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
8.0km (5.0 miles) ⓘRothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
8.7km (5.4 miles) ⓘTönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
10.8km (6.7 miles) ⓘHüttenberg sand pit, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
11.5km (7.1 miles) ⓘNickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
12.5km (7.8 miles) ⓘHochbermel, Bermel, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
12.5km (7.8 miles) ⓘSchellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
15.0km (9.3 miles) ⓘHannebacher Ley, Hannebach, Spessart, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
15.1km (9.4 miles) ⓘHerchenberg quarry, Burgbrohl, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
References
Peacor, Donald R., Dunn, Pete J., Simmons, William B., Tillmanns, Ekkehart, Fischer, Reinhard X. (1984) Willhendersonite, a new zeolite isostructural with chabazite. American Mineralogist, 69 (1-2) 186-189
 
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