Usage examples (27)

• Below this were strata of trachitic breccia and augite; the formation was then seamy to an unknown depth.
• Hornblende and augite are two widely distributed minerals, which are so similar in composition and properties that they may be considered together.
• Taken, then, a liquid which is heavy -- the most convenient is methylene iodide, whose specific gravity is 3.3 -- a fragment of zircon will sink in this, and a fragment of...
• They are divisible into two great classes, which have received the names of diorite and dolerite, the former a mixture of albite and hornblende, the latter of augite and...