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Calderite Mineral Data
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General Calderite Information
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 Chemical Formula: |
(Mn++,Ca)3(Fe+++,Al)2(SiO4)3 |
| Composition: |
Molecular Weight = 527.18 gm |
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Calcium 5.70 % Ca 7.98 % CaO |
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Manganese 23.45 % Mn 30.28 % MnO |
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Aluminum 2.56 % Al 4.84 % Al2O3 |
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Iron 15.89 % Fe 22.72 % Fe2O3 |
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Silicon 15.98 % Si 34.19 % SiO2 |
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Oxygen 36.42 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+2.25Ca0.75Fe3+1.5Al0.5(SiO4)3 |
| Environment: |
In a manganese deposit. |
| IMA Status: |
Valid Species (Pre-IMA) 1850 |
| Locality: |
From Katkamsandi, Hazaribagh district, Bihar, and at Netra, Balaghat district, Madhya Pradesh, India. Link to MinDat.org Location Data. |
| Name Origin: |
For James Calder, an early writer on the geology of India; name first applied to a rock, later transferred to its predominant mineral. |
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