Smith" says that the crystals, when cut and polished, resemble the emerald in luster though the color is not so intense as in the finer varieties of the latter gem. Prof. Edward S. Dana says that, owing to its dichroism, it has a peculiar brilliancy which... History of the Gems Found in North Carolina - Seite 47von George Frederick Kunz - 1907 - 60 SeitenVollansicht - Über dieses Buch
| 1881 - 1100 Seiten
...0-15 100-40 The specimen analyzed was of the paler variety. There is a trace of potash in the soda. The crystals when cut and polished resemble the emerald...luster, though the color is not so intense as in the finest variety of the latter gem. There is reason to hope that further explorations may bring to light... | |
| John Lawrence Smith - 1884 - 692 Seiten
...0.15 100.40 The specimen analyzed was of the paler variety. There is a trace of potash in the soda. The crystals when cut and polished resemble the emerald...luster, though the color is not so intense as in the finest variety of the latter gem. There is reason to hope that further explorations may bring to light... | |
| 1895 - 516 Seiten
...would afford the largest gem yet cut from this mineral, weighing perhaps 5£ carats. In Dr. Augustus C. Hamlin's cabinet is a fine gem weighing about 2 carats;...gem. Prof. Edward S. Dana says that, owing to its dichroism, it has a peculiar brilliancy which is wanting in the true emerald. Thomas T. Bouve, of Boston,... | |
| Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby - 1903 - 1078 Seiten
...County, NC The transparent crystals, when cut and polished, resemble the emerald in lustre, although the color is not so intense as in the finer varieties of the latter gem. Hiddenite has a spécifie gravity of 3.10, and gems of 2Vi carats in weight have 1юрп cut from it.... | |
| Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby - 1906 - 926 Seiten
...County, NC The transparent crystals, when cut and polished, roemble the emerald in lustre, although the color is not so intense as in the finer varieties of the latter gem. Hiddenite has a specific gravity of 3.19. and gems of 2 Ms carats in weight have been cut from it.... | |
| George Frederick Kunz - 1907 - 126 Seiten
...would afford the largest gem yet cut from this mineral, weighing perhaps 5i carats. In Dr. Augustus C. Hamlin's cabinet is a fine gem weighing about 2 carats;...emerald in luster though the color is not so intense ae in the finer varieties of the latter gem. Prof. Edward S. Dana says that, owing to its dichroism,... | |
| Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby - 1909 - 956 Seiten
...County, NC The transparent crystals, when cut and polished, resemble the emerald in lustre, although the color is not so intense as in the finer varieties of the latter gem. Hiddenite has a specific gravity of 3.19, and gems of 2% carats in weight have been cut from it. When... | |
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