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Updated: September 12, 2025
All mineralogists are agreed that the passage of voluminous masses, from a liquid or pasty to a solid and crystalline state, must be an extremely slow process.
Amphibole, sometimes pure and forming intermediate strata, at other times mixed with granite, as in the basanites or basalts of the ancients, may, of itself, furnish all the iron contained in the black and stony lavas. This quantity amounts in the basalt of the modern mineralogists only to 0.20, while in amphibole it exceeds 0. 30.
In any other young man, indeed in any other man, this would have been a ridiculous flight of presumption. There have been thousands of better mathematicians, astronomers, chemists, physicians, botanists, mineralogists, than Bacon.
I will come myself I'm engaged to dine out, but I can contract an indisposition; and I should advise you to ask Mosenheimer, and, say, young Phipson. They would stand for the mines, as you and the mineralogists would stand for science. Above all, don't blab; for Heaven's sake, let there be no premature gossip. Tell Schleiermacher not to go gassing and boasting of his success all over London."
To the professional mineralogist it is but an index, however, and he may consult the authority it is quoted from the American Journal of Science, etc. and thus find the part referred to, or by consulting other mineralogists who happen to know.
President Boon not only submitted the specimens of ore-bearing rock which he had brought from the mine to careful analysis, but also appealed to several of the greatest living chemists and mineralogists to aid him; but they were all equally mystified. The green substance contained in the ore, although differing slightly from ordinary chrysolite, answered all the known tests of that mineral.
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