Spongolite: a hollow fibrous mineral

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• journal_title：Clay Minerals
• Contributor：F. J. DOS SANTOS ; O. SALGADO SIQUEIRA ; A. A. S. T. DELBEN ; J. R. JURKEVICZ DELBEN ; P. MELNIKOV
• Publisher：Mineralogical Society of Great Britain and Ireland
• Date：2002-
• Format：text/html
• Language：en
• Identifier：10.1180/0009855023720031
• journal_abbrev：Clay Minerals
• issn：0009-8558
• volume：37
• issue：2
• firstpage：249
• section：Articles

摘要

<p id="p-1">Spongolite from the State of Mato Grosso do Sul, Brazil, contains the remains of fossil sponges and hollow needles or microcapillaries with uniform surfaces. The central tunnels are ~1/10 to 1/2 of the cylinder’s diameter. The material is essentially X-ray amorphous though it contains small amounts of orthosilicic acids. The other main elements were Ti and Fe. Spongolite may have uses as a sorbent, as a bioavailable silicon source or, after blending with glass waste, it can be used in the fabrication of lightweight products having a closed-cell structure, potentially useful as an industrial insulator. p>