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Books Bücher 1 - 10 von 13 in early times, as it occurs native in the metallic state, and is moreover easily reduced...
" early times, as it occurs native in the metallic state, and is moreover easily reduced from its ores. Metallic copper is found in enormous quantity near Lake Superior, in North America, and other localities. The following ores are the most important:... "
Handbook of Chemistry, for School and Home Use - Seite 58
von William James Rolfe, Joseph Anthony Gillet - 1869 - 205 Seiten
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Lessons in Elementary Chemistry

Henry Enfield Roscoe - 1867 - 398 Seiten
...crystallizing in cubic and octohedral forms, but the chief sources of copper are the following ores, (i) A compound of copper, sulphur, and iron, known as copper pyrites, Cu 2 S + Fe 2 S 3 . (2) The cuprous sulphide, Cu 2 S. (3) The carbonate or malachite ; and (4) The red or...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1868 - 383 Seiten
...Gravity 8-93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octohedral...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1868 - 383 Seiten
...Gravity 8-93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octohedral...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1869 - 458 Seiten
...Gravity 8-93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octahedral...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1869 - 458 Seiten
...Gravity 8-93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octahedral...
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Elements of Chemistry

William James Rolfe - 1870 - 421 Seiten
...COPPER GROUP OF METALS. . COPPER. 284. Its Ores, Properties, etc. — Copper has been known from very early times, as it occurs native in the metallic state,...copper, sulphur, and iron, known as copper pyrites, Cu 2 S -j- Fe 2 S,; (2) the cuprous sulphide, Cu 2 S ; (3) the carbonate or malachite ; and (4) the red...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1870 - 383 Seiten
...Gravity 8-93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octohedral...
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lessons in elementary chemistry

henry e. roscoe - 1870
...Gravity 8*93. Copper is an important metal, largely used in the arts, and has been known from very early times, as it occurs native in the metallic state,...reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octohedral...
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Elements of Chemistry

William James Rolfe - 1872 - 439 Seiten
...COPPER GROUP OF METALS. COPPER. 284. Its Ores, Properties, etc. — Copper has been known from very early times, as it occurs native in the metallic state,...copper, sulphur, and iron, known as copper pyrites, Cu 2 S -f- Fe.,5, ; (2) the cuprous sulphide, Cu 2 S ; (3) the carbonate or malachite ; and (4) the red...
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Lessons in Elementary Chemistry: Inorganic and Organic

Henry Enfield Roscoe - 1875 - 500 Seiten
...used in the arts, and has been known from very early times, as it occurs in the metallic or native state, and is moreover easily reduced from its ores. Metallic copper is found in considerable quantity in North America and other localities, crystallizing in cubic and octahedral...
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