Locality type: | Village |
Classification |
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Species: | Cordierite |
Formula: | (Mg,Fe)2Al3(AlSi5O18) |
Chemical Analyses: |
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Oxide wt%: | | 1 |
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SiO2 | 49.63 % |
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Al2O3 | 34.40 % |
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Fe2O3 | 0.23 % |
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FeO | 1.53 % |
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MgO | 12.77 % |
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CaO | 0.61 % |
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Na2O | 0.30 % |
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H2O+ | 0.34 % |
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Total: | 99.81 % |
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Sample references: | |
Comments: | a very Mg-rich variety with ca. 7 mol. % of the iron component |
Habit: | oval-shaped monomineralic aggregates |
Colour: | slightly bluish |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Cordierite data |
Locality Data: | Click here to view Ianakafy (Inanakafy), Ianakafy, Betroka District, Anosy, Madagascar |
Data Identifiers |
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Mindat Occurrence Record ID: | 367041 |
Long-form Identifier: | 1:3:367041:5 |
GUID (UUID V4): | cdcdc58d-e166-47d9-b8dd-f34beef11372 |
References |
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