Lonsdaleite is also known as "hexagonal diamond." It has an index of refraction from 2.40 to 2.41, a density from 3.2 to 3.3, and a hardness of 3.00.
... section of Northwestern University - security guard is wounded. The first bomb of the Unabomber case.
May 26 - DC-10 crashes in O'Hare international airport[?]
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