amygdaloidal
Britishadjective
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(of a volcanic rock) containing amygdales
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a less common form of amygdaloid
Example Sentences
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What is meant by the terms amygdaloidal and porphyritic?
From Geology by James Geikie
Still further north, near S. Anna, where the Parana makes a remarkable bend, M. Bonpland found some singular amygdaloidal rocks, which perhaps may belong to this same epoch.
From Geological Observations on South America by Charles Darwin
The Fountain of Saint Vulcan, anti-blepharous and amygdaloidal, was charged with such potent minerals that a single spoonful produced a diarrhoea more distressing to witness than cholera.
From South Wind by Norman Douglas
Volcanic ash, or bole, is frequently found separating the different lava-flows; and in the upper amygdaloidal sheets numerous secondary minerals are found, such as quartz, agate and jasper, stilbite and chlorite.
From Volcanoes: Past and Present by Edward Hull
The only rocks noticed when we crossed these hills on the late journey, were clay-slate, greenstone, and dark red sandstone, sometimes containing white calcareous concretions, resembling an amygdaloidal rock.
From Narrative of a Second Expedition to the Shores of the Polar Sea by John Franklin
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