| 1. | Six identical rhombic faces can construct two configurations of trigonal trapezohedra.
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| 2. | There is also a large trigonal brownish suffusion on the tornus.
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| 3. | These point groups are assigned to the trigonal crystal system.
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| 4. | It forms green to deep blue-green trigonal crystals.
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| 5. | It forms a colorless to yellow trigonal crystal with a vitreous luster.
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| 6. | Gaseous TaF 5 adopts the trigonal pyramidal structure with D 3h symmetry.
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| 7. | His study of the first trigonal prismatic complexes is one such example.
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| 8. | Its crystal system is trigonal hexagonal scalenohedral with symbol 2 / m.
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| 9. | The cation sits at the center of a trigonal prism.
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| 10. | Tetragonal, trigonal and Isometric minerals cannot exhibit pleochroism.
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