... The colour is a sunburnt black, tinted ferruginous red like meteoric stones, and it is generally friable, crumbling under the nails... 
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...It has the appearanceof a corroded surface, under which the mucous membrane or muscular tissue seemstransformed into a dry, friable, or firm cheesy mass...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The muscles at this point are friable, spongy, and of a uniform brownishtint, dissociated by gas and with a blood-tinged exudate...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Bone and ivory soon deteriorateand become friable...
Gaston Camille Charles Maspero 「Manual Of Egyptian Archaeology And Guide To The Study Of Antiquities In Egypt」
...Rocky, bushy, and evergreen grounds, either hill, dale,or plain, are good for them, wherever the soils are dry and friable...
Lewis Falley Allen 「Rural Architecture」
...Over this a laterstratum was deposited called tufa granolare, consisting of a similarmechanical conglomerate of scoriæ, ashes, and other volcanic products,but more porous and friable in texture...
Hugh Macmillan 「Roman Mosaics」
...It is loose, friable, worthless in itself...
Henry Warren 「Recreations in Astronomy」
...The low land by the Sea, and even as far in land as we were, is for themost part friable, loose, sandy Soil yet indifferently fertile, andCloathed with woods, long grass, shrubs, plants, etc...
James Cook 「Captain Cook's Journal During the First Voyage Round the World」
...The stone is so friable thatnames can be cut in it to almost any depth with a pocket-knife: soloose, indeed, is it, that one almost feels alarmed lest it should fallwhile he is scratching at its base...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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