| 21. | Crystal Systems Solutions Ltd ., Herzila, Israel, 1.2 million shares.
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| 22. | These point groups are assigned to the trigonal crystal system.
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| 23. | Graphite is an example of a crystal that crystallizes in the hexagonal crystal system.
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| 24. | It crystallizes in the monoclinic crystal system as colorless to white prisms within cavities.
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| 25. | Geigerite s crystal system is triclinic with perfect cleavage on the { 010 }.
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| 26. | Both phases crystallise in the tetragonal crystal system and the structural differences are small.
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| 27. | It belongs to the orthorhombic crystal system and is a part of the pyramidal class.
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| 28. | Dickite has a monoclinic crystal system and its crystal class is domatic ( m ).
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| 29. | A crystal system is described by three basis vectors.
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| 30. | The crystal structure of zircon is tetragonal crystal system.
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