| 11. | Crystals are tetragonal, though commonly deformed to the extent of appearing monoclinic.
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| 12. | At to it decomposes to tetragonal cubanite plus bornite.
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| 13. | The calcium oxalate crystals occur in the tetragonal form, known as weddellite.
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| 14. | It forms tetragonal crystals with perfect 001 cleavage.
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| 15. | The tetragonal crystals are sectile, and consequently was earlier known as corneous lead.
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| 16. | The structure may called a tetragonal layer structure.
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| 17. | It is a brown to black metallic mineral which crystallizes in the tetragonal system.
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| 18. | Numerous examples are known with cubic, tetragonal, rhombohedral, and orthorhombic symmetries.
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| 19. | Both phases crystallise in the tetragonal crystal system and the structural differences are small.
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| 20. | The compound crystallizes as tetragonal birefringent crystals.
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