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rhombohedral
/ ˌrɒmbəʊˈhiːdrəl /
rhombohedral
/ rŏm′bō-hē′drəl /
- See trigonal
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Example Sentences
In composition it differs entirely from sapphire, or the rhombohedral corundum.
From Project Gutenberg
The crystals belong to the hexagonal system, and are generally of rhombohedral habit, sometimes twinned.
From Project Gutenberg
The habit of the crystals may be rhombohedral, pyramidal or tabular, rarely prismatic.
From Project Gutenberg
Haematite crystallizes in the rhombohedral system, and is isomorphous with corundum (Al2O3).
From Project Gutenberg
There are two divisions of the hexagonal system; the hexagonal system properly so-called, and its rhombohedral division.
From Project Gutenberg
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