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.
... was found to be unsuitable for the rigors of jungle warfare. The Army formed an Ordnance Board, headed by John T. Thompson[?], to select a more suitable weapon. The ...
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