 Naples till 1805, is a fragment of lava enclrsing a real granite, which is composed of reddish feldspar with a pearly lustre like adularia, quartz, mica, hornblende, and, what is very remarkable, lazulite. But in general the masses of known primitive...  Personal Narrative of Travels to the Equinoctial Regions of America, During ... - Página 106de Alexander von Humboldt, Aimé Bonpland - 1852 - 505 páginasVista completa - Acerca de este libro
 | Alexander von Humboldt, Aimé Bonpland - 1814 - 372 páginas
...valuable collection of Dr. Thomson, who resided at Naples till 1805, is a fragment of lava enclosing a real granite, which is composed of reddish feldspar...remarkable, lazulite. But in general the masses of i real mica-slate. Every thing that tends to enlighten us with respect to the site of the volcanic... | |
 | Alexander von Humboldt, Aimé Bonpland - 1814 - 372 páginas
...valuable collection of Dr. Thomson, who resided at Naples till 1805, is a fragment of lava enclosing a real granite, which is composed of reddish feldspar...like adularia, quartz, mica, hornblende, and, what is rery remarkable, lazulite. But in general the masses of real mica-slate. Every thing that tends to... | |
 | Alexander von Humboldt, Aimé Bonpland - 1818 - 666 páginas
...valuable collection of Dr. Thomson, who resided at Naples till 1805, is a fragment of lava enclosing a real granite, which is composed of reddish feldspar with a pearly histre like adularia, quartz, mica, hornblende, and, what is very remarkable, lazi.l te. But in general... | |
 | John White Webster - 1821 - 284 páginas
...Humboldt. It " is a fragment of lava enclosing a real granite, which is composed of reddish felspar with a pearly lustre like adularia, quartz, mica,...what is very remarkable, lazulite. But in general," he continues, " the masses of known primitive rocks, 1 mean those which perfectly resemble our granites,... | |
 | John White Webster - 1821 - 274 páginas
...is a fragment of lava enclosing a real granite, which is composed of reddish felspar with a pe;irly lustre like adularia, quartz, mica, hornblende, and,...what is very remarkable, lazulite. But in general," he continues, " the masses of known primitive rocks, 1 mean those which perfectly resemble our granites,... | |
 | Alexander von Humboldt, Aimé Bonpland - 1822 - 762 páginas
...valuable collection of Dr. Thomson, who resided at Naples till 1805, is a fragment of lava enclosing a real granite, which is composed of reddish feldspar with a pearly 'ustre like adularia, quartz, mica, hornblende, and, what is very remarkable, lazulite. But in general... | |
 | Alexander von Humboldt, Aimé Bonpland - 1852 - 536 páginas
...valuable collection of Dr. Thomson, who resided at Naples till 1805, is a fragment of lava encli sing a real granite, which is composed of reddish feldspar...quartz, mica, hornblende, and, what is very remarkable, lazuiite. But in general the masses of known primitive rocks, (I mean those which perfectly resemble... | |
 | Charles Darwin - 1890 - 602 páginas
...remarks that this is the case ; and Humboldt, in his " Personal Narrative " (vol. i., p. 236), says, " In general, the masses of known primitive rocks, I mean those which perfectly resemble our granites, gneiss, and mica-slate, are very rare in lavas : the substances we generally denote by the name of... | |
 | Charles Darwin - 1896 - 688 páginas
...this is the case; and Humboldt, in his 'Personal Narrative' (vol. i. p. 236), says, ' In general, tlie masses of known primitive rocks, I mean those which perfectly resemble our granites, gneiss, and micaHlate, are very rare in lavas : the substances we generally denote hy the name of granite,... | |
 | Charles Darwin - 1896 - 690 páginas
...remarks that this is the case; and Humboldt, in his ' 1'ersonal Narrative' (vol. i. p. 2.<6), says, ' In general, the masses of known primitive rocks, I mean those which perfectly resemble our granites, gneiss, and micaslate, are very rare in lavas : the substances we generally denote by the name of granite,... | |
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