"Hornblende" Quotes from Famous Books
 ... burning, appears to consist of trap-rock, and is thickly strewed with agates. The hills on the opposite or south side of the valley are composed of compact felspar, with acicular crystals of glassy or common felspar and grains of hornblende, crevices of the stone being coated with films of ...
— Three Expeditions into the Interior of Eastern Australia, Vol 1 (of 2) • Thomas Mitchell
... the form of ironstone. Lead was procurable from Bactria, Armenia, Korman, and many parts of Affghanistan; orpiment from Bactria, Kerman, and the Hazareh country; antimony from Armenia, Affghanistan, and Media; hornblende, quartz, talc, and asbestos, from various ...
— The Seven Great Monarchies Of The Ancient Eastern World, Vol 5. (of 7): Persia • George Rawlinson
... battery of twelve cannons and forced Fort Santo Antonio to surrender on January 19, 1642. The rock is of trap, greenstone, or whinstone, which miners call iron-stone and Cornishmen 'blue elvan:' this diorite, composed of felspar and the hardest hornblende, contains granular iron and pyrites like silver. Some specimens are beautifully banded in onyx-fashion and revetted with 'spar' (quartz) of many colours, dead-white and crystalline, red and yellow. We find the same trap on the ...
— To The Gold Coast for Gold, Vol. II - A Personal Narrative • Richard Francis Burton and Verney Lovett Cameron
... varying character; they consist of black, brown, and grey, compact, basaltic bases, with numerous crystals of augite, hornblende, olivine, mica, and sometimes glassy feldspar. A common variety is almost entirely composed of crystals of augite with olivine. Mica, it is known, seldom occurs where augite abounds; nor probably does the present case offer a real exception, for ...
— Volcanic Islands • Charles Darwin |
