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Tritomite-(Y) Mineral Data
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General Tritomite-(Y) Information
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 Chemical Formula: |
(Y,Ca,La,Fe++)5(Si,B,Al)3(O,OH,F)13 (?) |
| Composition: |
Molecular Weight = 693.60 gm |
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Calcium 8.67 % Ca 12.13 % CaO |
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Lanthanum 20.03 % La 23.49 % La2O3 |
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Yttrium 25.64 % Y 32.56 % Y2O3 |
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Aluminum 1.17 % Al 2.21 % Al2O3 |
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Iron 4.03 % Fe 5.18 % FeO |
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Silicon 8.10 % Si 17.33 % SiO2 |
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Boron 1.09 % B 3.51 % B2O3 |
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Hydrogen 0.44 % H 3.90 % H2O |
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Oxygen 25.37 % O |
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Fluorine 5.48 % F 5.48 % F |
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- %
F -2.31 % -O=F2 |
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______ ______ |
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100.00 % 103.46 % = TOTAL OXIDE |
| Empirical Formula: |
5(Y0.4)5(Ca0.3)5(La0.2)5(Fe2+0.1)Si2B0.7Al0.3O8(OH)3F2 |
| Environment: |
Granite pegmatites. |
| IMA Status: |
Approved IMA 1962 |
| Locality: |
Cranberry Lake, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek for "three" and "to cut," in allusion to the trihedral cavities left in the host rock by the crystals. |
| Name Pronunciation: |
Tritomite-(Y) + Pronunciation  |
| Synonym: |
Spenceite |
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