 | Earth sciences - 1897 - 600 pages
...this locality. The only two faces that could be identified were the base c(0001) and the rhombohedron #(3032) which is a new face for corundum. On one crystal,...varied from 66° to 68°, but approximated closely to (57°, which agrees very well with the calculated value, 67° 3', for 0001/^3032. The crystals are... | |
 | Science - 1897 - 1100 pages
...locality. The only two faces that could be identified were the base c(0001) and the rhombohedron ar(3032) which is a new face for corundum. On one crystal,...varied from 66° to 68°, but approximated closely to H7°, which agrees very well with the calculated value, 67° 3', for 0001 ^ 3032. The crystals are... | |
 | Walter Harvey Weed, Louis Valentine Pirsson - Geology - 1900 - 444 pages
...any of the crystals from this locality. The only two faces that conld be identified were the base с (0001) and the rhombohedron x (3032), which is a new...two very small faces were observed, which were too smail to be measured with the contact goniometer, bnt were probably the faces of a pyramid of the second... | |
 | Geology - 1905 - 918 pages
...faces. The only two faces that could be identified were the base c (0001) and the rhombohedron x (30&2), which is a new face for corundum. On one crystal two...ten or more independent measurements were made of e/\.r. These varied from (SO0 to (18°, but « Kunz, (!. K., Am. Jour. Sol.. 4th scr., vol. 4, 1S97,... | |
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The only two faces that could be identified were the base c (0001) and the rhombohedron x (3032) which is a new face for corundum. On one crystal two very small faces were observed which were too small to be measured with the contact goniometer, but were... 