| Mineral | Elpidite |
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| Formula | Na2ZrSi6O15 · 3H2O
|
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| Crystal Form | Orthorhombic/Dipyramidal [2/m 2/m 2/m] |
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| Cleavage | Perfect on {110} |
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| Color | White, Colorless, Yellowish, Pale-to-bright orange, Brownish yellow, Beige, Green, Brick-red |
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| Density | 2.5 – 2.6 g/cm3 |
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| Diaphaneity | Opaque to Transparent |
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| Fracture | Splintery |
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| Hardness | 5.0 |
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| Lustre | Silky, Vitreous to Waxy or Dull |
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| Type Loc. | Narsaarsuk pegmatite, Narsaarsuk Plateau, Igaliku, Narsaq, Kujalleq, Greenland, Denmark |
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| Dana 8 Class | 72.5.4.2 |
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| Strunz Class | 8/F.23-10 |
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| Mindat | mindat.org |
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| WebMineral | WebMineral |
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| ID | 353 |
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