 | | 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...weathered and oxidized zone overlying a sulfide deposit; contains a concentration of hydrated iron oxide | | | 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...weathered and oxidized zone overlying a sulfide deposit; contains a concentration of hydrated iron oxide...such substances may form a continuous isomorphous series. isotropic In crystal optics the characteristic |
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