| 1. | Additionally, carbon polymorphs even harder than lonsdaleite have been discovered in the crater.
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| 2. | Lonsdaleite has also been made artificially in laboratories.
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| 3. | Lonsdaleite occurs naturally in asteroids and cosmic dust and as a result of extraterrestrial impacts on Earth.
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| 4. | When viewed altogether, the atomic positions are the same as in lonsdaleite ( hexagonal diamond ).
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| 5. | Naturally occurring lonsdaleite has also been identified in non-bolide diamond placer deposits in the Sakha Republic.
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| 6. | It exists in various wurtzite BN modification is similar to lonsdaleite and may even be harder than the cubic form.
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| 7. | Consequently, it has been suggested that " stacking disordered diamond " is the most accurate structural description of lonsdaleite.
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| 8. | Lonsdaleite is simulated to be 58 % harder than diamond on the diamond's tip hardness of 162 GPa.
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| 9. | Lonsdaleite was first identified in 1967 from the Canyon Diablo meteorite, where it occurs as microscopic crystals associated with diamond.
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| 10. | :: According to " the stability domain of lonsdaleite ( hexagonal diamond ) lies entirely within that of cubic diamond ".
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