Projekt: Bestände der Universitätsbibliothek Freiberg
LDP: UB Freiberg Druckschriften
Ausgabe
4. ed., considerably augmented by Robert Allan
Strukturtyp
Monographie
Parlamentsperiode
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Wahlperiode
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Titel
Combustible Minerals; Those of which the base is sulphur or carbon. It includes substances of the most opposite external characters; both the hardest and the softest in nature
396 COMBUSTIBLE MINERALS. London, in great measure consists. It is in irregular nieces of a hght-yellowish and dirty-brown colour, somewhat translucent, and with a resinous lustre; it is brittle, yields easily to the knife, and is but little heavier than water, its specific gravity being only 1-046. It gives out a resinous aromatic odour when heated, and melts into a limpid fluid; when applied to the candle it takes fire and burns with a clear yellow flame and abundance ot smoke, as is the case with other resins; before the blowpipe it burns away without leaving any perceptible ash. It has been found in considerable abundance at Wolchow in Moravia.