| 摘要 |
This invention is directed to the production of inorganic crystalline fibers containing a minor amount of Mo03 and/or W03 and/or As203 and wherein the predominant crystal phase is selected from the group of a fluormica, a fluoramphibole, canasite, potassium and/or sodium fluorrichterite, fluorapatite, and a lithium-containing, beta-spodumene-type crystal.
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