 | J.D. Dana - 1855 - 440 Seiten
...from talc in affording thinner folia and being elastic ; also in not having the greasy feel of that mineral. The same characters, excepting the last,...tho arts, are those of New Hampshire. Lepidolite, or LitUia mica. Occurs in crystals or laminae, of a purplish color, and often in masses consisting... | |
 | James Dwight Dana - 1876 - 458 Seiten
...from talc in affording thinner folia and being elastic ; also in not having the greasy feel of thav mineral. The same characters, excepting the last,...best localities of the mineral in this country for the arts, are those of New Hampshire. Lepidolite, or Lithia mica. Occurs in crystals or laminae, of... | |
 | 1878 - 790 Seiten
...they could be procured, were at one time used in the Russian naval vessels for deck or dead lights, because not liable to fracture from concussion. It is in common use for lanterns, and is rapidly coming into use for lamp chimneys. On account of its transparency and toughness, and the... | |
 | 1903 - 504 Seiten
...they could be procured, were at one time used in the Russian naval vessels for deck or dead lights, because not liable to fracture from concussion. It is in common use for lanterns, and is rapidly coming into use for lamp chimneys. On account of its transparency and toughness, and the... | |
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... mineral. The same characters, excepting the last, distinguish it from gypsum ; besides, it does not crumble so readily on heating. Obs. Mica is one of the constituents of granite, gneiss and mica slate, and gives to the latter its laminate structure.... 