| | Book (edition) | N icolaus Steno (1638-1686), discovered that a series of measure1nents 1nade on quartz crystals from...clearly describes the sheet structure formed by a series of connected rings linked at all corners in a hexag·onal...substitution, as for example between fayalite, an iron silicate, and forsterite, a magnesium silicate. Both species...ea lled an iso111orphous series. The pure species, fayalite and forsterite, are called the end members...properties. In some instances, as in the fayalite-forsterite series, fairly accurate estimates of substitution | | | Book (edition) | Morocco; (center, left) wulfenite, San Francisco mine, Sonora, Mexico; (center) ameihyst, Veracruz, Mexico;...rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine, Arizona; (lower...Pe Wr * se vat © C6 tad GAa Snive Sr Certain Mine (ax agry wh Oe ee — SS 4 eae wid Bharce ©...could be resolved, we are now prepared for a long series (welcome for the next edition) of letters pointing...such substances may form a continuous isomorphous series. isotropic In crystal optics the characteristic | | | Book (edition) | Morocco; (center, left) wulfen ite San Francisco mine, Sonora, Mexico; (center) amethyst, Veracruz, Mexico;...Mountains, Utah; (lower le ft) rhodochrosite, N'Chwaning mine, Sou th A frica; {lower left, center) wulfenite...could be resolved, we are now prepared for a long series (welcome for the next edition) of letters pointing...such substances may form a continuous isomorphous series. isotropic In crystal optics the characteristic...system. transition element (transition metal) A series of elements occupying certain positions in the |
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