Ferri-tschermakite from
Pacova Hill quarry, Dolní Hořice, Tábor District, South Bohemian Region, Czech Republic
Locality type: | Quarry | |
Classification | ||
---|---|---|
Species: | 'Ferri-tschermakite' (not an IMA approved species) | |
Formula: | ◻{Ca2}{Mg3Fe23+}(Al2Si6O22)(OH)2 | |
Comments: | Vrána (2011) publish a microprobe analysis corresponding to the following formula: (Na0.088K0.044)0.132(Ca1.675Na0.319Mn0.006)2.00(Mg2.398Fe2+0.651Mn2+0.133Zn0.004Fe3+1.297Cr0.003V0.014Ti0.065Al0.434)5.00(Si6.319Al1.681)8.00O22((OH)1.923F0.064O0.013)2.00 Fe3+ content calculated by Vrána, O content and formula normalizaton in accordance with Andrew J. Locock (2014): An Excel spreadsheet to classify chemical analyses of amphiboles following the IMA 2012 recommendations. Computers & Geosciences, Volume 62, pp 1-11. | |
Confirmation | ||
Validity: | Confirmed | |
Confirmation Methods: | EPMA | |
Data | ||
Mineral Data: | Click here to view Ferri-tschermakite data | |
Locality Data: | Click here to view Pacova Hill quarry, Dolní Hořice, Tábor District, South Bohemian Region, Czech Republic | |
Data Identifiers | ||
Mindat Occurrence Record ID: | 911090 | |
Long-form Identifier: | 1:3:911090:8 | |
GUID (UUID V4): | 645957e8-6ab4-4512-b0ab-7a001efa60da | |
References | ||