Locality type: | Quarry |
Classification |
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Species: | 'Obertiite Root Name Group' (not an IMA approved species) |
Formula: | ANa2(Z32+Z3+Ti)Si8O22O2 |
Comments: | Obertiite root name minerals with variable Fe:Mn ratios have been analysed and both ferri-obertiite and mangani-obertiite has been identified. These minerals do not appear to be possible to distinguish by simple means |
Confirmation |
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Validity: | Confirmed |
Confirmation Methods: | EPMA |
Associated Minerals Based on Photo Data: |
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Mangani-obertiite | ⓘ2 photos of Obertiite Root Name Group associated with Mangani-obertiite at this locality. |
Data |
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Mineral Data: | Click here to view Obertiite Root Name Group data |
Locality Data: | Click here to view Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany |
Photo Gallery | View Gallery (6 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 921402 |
Long-form Identifier: | 1:3:921402:6 |
GUID (UUID V4): | 01cef093-3c98-4e05-b66b-1a8e86d25cfd |
Nearest other occurrences of Obertiite Root Name Group |
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5.8km (3.6 miles) | ⓘRothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany |
9.7km (6.0 miles) | ⓘNickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany |
10.3km (6.4 miles) | ⓘNickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany |
12.7km (7.9 miles) | ⓘWannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany |
13.1km (8.1 miles) | ⓘHerchenberg, Burgbrohl, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany |
37.8km (23.5 miles) | ⓘEmmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany |
References |
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Hawthorne, Frank C., Cooper, Mark A., Grice, Joel D., Ottolini, Luisa (2000) A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3Fe3+Ti4+)Si8O22O2. American Mineralogist, 85 (1) 236-241 doi:10.2138/am-2000-0124 |
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany