Characterization of natural silicate garnets by means of non-destructive testing methods

Abstract

Two kinds of natural silicate garnets from the known origin countries were investigated: pyralspites – pyrope (Russia), almandine (India), rhodolite (India), spessartine (India), blue colour-change garnet (Sri Lanka), and ugrandites – andradite (Russia), demantoid (Russia), topazolite (Russia), rainbow garnet (Japan), grossular (Kenya-Tanzania), colourless grossular (India), light orange grossular (India), dark green tsavorite (Tanzania), medium green tsavorite (Kenya), light green tsavorite (Kenya), orange hessonite (Sri Lanka), pink hessonite (Sri Lanka), cinnamon hessonite (India) and uvarovite (Russia). The chemical composition of the garnets was performed with a scanning electron microscope. The physical properties such as specific gravity and refractive index were measured for the majority of garnets investigated. The spectroscopic meth­ods – visible light absorption spectrophotometry, Raman spectroscopy and cathodoluminiscence microscopy – were applied for the characterization of the mentioned natural silicate garnets.

Valorization of Abrasive Waterjet Garnet Wastes by Innovative Integration in Building Materials

“…On the other hand, scientific studies [16,37] are stating that metal content like Zn, Cu, and Mn might bring a positive contribution to the concrete matrix by intensifying the specific hydration process. In case of Garnet waste gradual replacement of fine sand in the concrete mix, a reduction of Zn content under the accepted 5 ppm was recorded, demonstrating the capacity of cement-based material to confine the Zinc content in the matrix [28], confirming previous studies in the field [38].…”