General Yazganite Information
|
 Chemical Formula: |
NaFe+++2(Mg,Mn)(AsO4)3•H2O |
| Composition: |
Molecular Weight = 602.82 gm |
| |
Sodium 3.78 % Na 5.09 % Na2O |
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Magnesium 2.46 % Mg 4.08 % MgO |
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Manganese 2.92 % Mn 3.77 % MnO |
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Zinc 0.22 % Zn 0.27 % ZnO |
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Iron 18.99 % Fe 27.15 % Fe2O3 |
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Arsenic 37.16 % As 60.97 % AsO3 |
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Hydrogen 0.29 % H 2.63 % H2O |
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Oxygen 34.18 % O |
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______ ______ |
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100.00 % 103.95 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.99Fe3+2.05Mg0.61Mn2+0.32Zn0.02As2.99O12�0.88(H2O) |
| Environment: |
Found in fissures 1 m thick in porphyric andesite. The Erciyes stratovolcano is composed of calc-alkaline basaltic andesite and dacite lavas with intercalated pyroclastics. Alluaudi te group. |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Erciyes volcanic complex, 10 km south of the prefecture of Kayseri, near Hisarcik, Kiranardi, Turkey. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Dr. Evren Yazgan (b. 1943), a geologist in Turkey who worked in this region. |
| Synonym: |
IMA2003-033 |
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