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Harkerite Mineral Data
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General Harkerite Information
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Chemical Formula: |
Ca24Mg8Al2(SiO4)8(BO3)6(CO3)10•2(H2O) |
Composition: |
Molecular Weight = 2,935.91 gm |
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Calcium 32.76 % Ca 45.84 % CaO |
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Magnesium 6.62 % Mg 10.98 % MgO |
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Aluminum 1.84 % Al 3.47 % Al2O3 |
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Silicon 7.65 % Si 16.37 % SiO2 |
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Boron 2.21 % B 7.11 % B2O3 |
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Hydrogen 0.14 % H 1.23 % H2O |
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Carbon 4.09 % C 14.99 % CO2 |
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Oxygen 44.69 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Ca24Mg8Al2(SiO4)8(BO3)6(CO3)10•2(H2O) |
Environment: |
Skarns in dolomitic limestones at the contact with granite |
IMA Status: |
Valid Species (Pre-IMA) 1948 |
Locality: |
Camas Malag, near Broadford, Isle of Skye, Scotland. Link to MinDat.org Location Data. |
Name Origin: |
Named for Alfred Harker (1859-1939), British petrologist, Cambridge University, Cambridge, England. |
Name Pronunciation: |
Harkerite + Pronunciation |
Synonym: |
ICSD 12105 |
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PDF 10-465 |
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