| 11. | Its conchoidal, leaving a waxy lustre.
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| 12. | It has a brittle to conchoidal fracture.
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| 13. | It has indistinct cleavage on { 001 } and a conchoidal fracture and is brittle.
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| 14. | It has conchoidal fracture with no cleavage.
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| 15. | Farneseite is brittle and has conchoidal fracture.
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| 16. | It is of a conchoidal structure.
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| 17. | It has an isometric crystal system, Conchoidal fracture, non-magnetic and non-radioactive.
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| 18. | It displays a perfect cleavage on ( 010 ), it is brittle and has a conchoidal fracture.
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| 19. | Hidalgoite specimens are usually translucent to sub opaque, and the brittle nature of mineral produces conchoidal fractures.
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| 20. | Like all glass and some other types of naturally occurring rocks, obsidian breaks with a characteristic conchoidal fracture.
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