“Variation of Refractive Index and Elemental Composition Within a Mineral Wool Product” (2009)


Proceedings of the American Academy of Forensic Sciences, Annual Meeting, Feb 2009


Using glass fibers as trace evidence presents quite a challenge to the microscopist. The optical properties and the elemental composition of mineral wool fibers (non-continuous glass fibers made from rock (basalt) and/or slag) can vary considerably within a single insulation product. Relying on the optical and elemental composition of one fiber (or even several fibers) found as trace evidence can lead to an incorrect determination as to the mineral wool product type and its source of manufacture.

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