 | Royal Society (Great Britain) - Electronic journals - 1843 - 538 pages
...which grow on the moist moorlands above, and which, being carried by the waters into the fissures of the granite beneath, combines with the alumina of...felspar ; and when it reaches the air, deposits itself on the roof and sides of the caverns, in the form of layers, varying from a line to two or three inches... | |
 | Royal Society (Great Britain) - Electronic journals - 1843 - 552 pages
...which, being carried by the waters into the fissures of the granite beneath, combines with the ulumina of the decomposed felspar ; and when it reaches the air, deposits itself on the roof and sides of the caverns, in the form of layers, varying from a line to two or three inches... | |
 | Henry William Bristow - Mineralogy - 1861 - 478 pages
...slowly and leaves a grey or white ash, consisting o: alumina with some slight foreign admixtures. Camp. The organic constituent of Pigotite is considered...air, deposits itself over the roof and sides of the caverns in the form of layers varying from two to three inches in thickness. Name. After the Rev. M.... | |
 | Henry William Bristow - Mineralogy - 1861 - 510 pages
...moorlands above. and which being carried by the waters inte fissures in the granite beneath, combine with the alumina of the decomposed Felspar and when it reaches the air, deposits itsel over the roof and sides of the caverns in th form of layers varying from two to three inches... | |
 | Henry Woodward - Geology - 1894 - 634 pages
...which grow on the moist moorlands above, and which, being carried by the waters into the fissures of the granite beneath, combines with the alumina of...felspar ; and when it reaches the air deposits itself on the roof and sides of the caverns in the form of layers, varying from a line to two or three inches... | |
 | Joseph Henry Collins - 1871 - 236 pages
...is said to be 4A12O3 + C12H5Os + 27H2. Loc. Some of the granite caves of the coast of Cornwall. 06*. It can hardly be considered a mineral. It has been...layers, varying from two to three inches in thickness." (Bristow's Gloss. Min., p. 288.) PINITE. Rhombic ; usually in six or twelvesided prisms, sometimes... | |
 | Henry Woodward - Electronic journals - 1894 - 636 pages
...which grow on the moist moorlands above, and which, being carried by the waters into the fissures of the granite beneath, combines with the alumina of...felspar ; and when it reaches the air deposits itself on the roof and sides of the caverns in the form of layers, varying from a line to two or three inches... | |
 | Physics - 1840 - 570 pages
...which grow on the moist moorlands above, and which, being carried by the waters into the fissures of the granite beneath, combines with the alumina of...felspar; and when it reaches the air, deposits itself on the roof and sides of the caverns, in the form of layers, varying from a line to two or three inches... | |
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The organic constituent of this substance (pigotite), the author considers to be derived from the decay of the various plants which grow on the moist moorlands above, and which, being carried by the waters into the fissures of the granite beneath, combines... 