Locality type: | Pegmatite |
Classification |
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Species: | Hellandite-(Y) var: Manganese-bearing Hellandite-(Y) |
Formula: | Ca1.34Mn1.07Y2.75Yb0.38Al0.92Fe0.08Si4B4O21.21(OH)2.79 |
Chemical Analyses: |
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Oxide wt%: | | 1 |
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CaO | 7.65 % |
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MnO | 7.71 % |
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Y2O3 | 31.60 % |
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La2O3 | 0.04 % |
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Ce2O3 | 0.29 % |
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Nd2O3 | 0.37 % |
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Sm2O3 | 0.25 % |
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Gd2O3 | 0.19 % |
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Dy2O3 | 0.90 % |
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Er2O3 | 0.93 % |
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Yb2O3 | 2.99 % |
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Al2O3 | 4.85 % |
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Fe2O3 | 0.62 % |
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SiO2 | 24.35 % |
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B2O3 | 15.32 % |
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ThO2 | 0.09 % |
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H20 (calc) | 1.83 % |
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Total: | 99.98 % |
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Empirical formulas: | 1 | Ca1.34Mn1.07Y2.75Ce0.02Nd0.02Sm0.01Gd0.01Dy0.05Er0.05Yb0.15Al0.94Fe0.08Si3.99B4.33O22.00(OH)2.00 |
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Sample references: | |
1 | - | Miyawaki, Ritsuro, Momma, Koichi, Yokoyama, Kazumi, Shigeoka, Masako, Matsubara, Satoshi, Ito, Miku, Nakai, Izumi, Kristiansen, Roy (2015) Mn-bearing hellandite-(Y) from Heftetjern pegmatite, Tørdal, Norway. The Canadian Mineralogist, 53 (2) 345-356 doi:10.3749/canmin.1400068 |
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Comments: | Pinkish yellow granular crystals |
Habit: | granular crystals |
Colour: | Pinkish yellow |
Confirmation |
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Validity: | Valid - Type Locality |
Associated Minerals: |
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Associates: | Albite Epidote Hingganite-(Y) Quartz
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Data |
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Mineral Data: | Click here to view Manganese-bearing Hellandite-(Y) data |
Locality Data: | Click here to view Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway |
Data Identifiers |
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Mindat Occurrence Record ID: | 1235275 |
Long-form Identifier: | 1:3:1235275:7 |
GUID (UUID V4): | d3d11f9b-b7e9-4a32-93c2-04e8fc98c7f9 |
References |
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Miyawaki, Ritsuro, Momma, Koichi, Yokoyama, Kazumi, Shigeoka, Masako, Matsubara, Satoshi, Ito, Miku, Nakai, Izumi, Kristiansen, Roy (2015) Mn-bearing hellandite-(Y) from Heftetjern pegmatite, Tørdal, Norway. The Canadian Mineralogist, 53 (2) 345-356 doi:10.3749/canmin.1400068 |