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Sassolite |
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sassolite [′sas·ə‚līt]
(mineralogy) H3BO3A white or gray mineral consisting of native boric acid usually occurring in small pearly scales as an incrustation or as tabular triclinic crystals. Also known as sassoline. Sassolite (also sassoline), a borate mineral with the chemical formula H3BO3 or B(OH)3. Sassolite crystallizes in the triclinic system, forming fine, colorless scales with a pseudohexagonal habit or white efflorescences. The color is white, gray, or greenish, with a pearly luster. Sassolite has a hardness of 1 on Mohs’ scale, and its density is 1,480 kg/m3. A rare mineral, sassolite is formed by volcanic processes as a fumarolic sublimate deposited in the form of films along thin cracks of volcanogenic rocks. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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