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Table. 6.

Table. 6.

Physical and mineralogical properties according to temperature stages for refiring experiment about the #03 sample

Refiring temperature Chromaticity Water absorption Specific gravity Minerals1 Vitrification2
L* a* b*
#03 63.95 14.31 27.90 16.73% 1.74 Q, K, P, M, Am NV
800℃ 65.55 18.52 32.82 18.01% 1.75 Q, K, P, M, Am, H IV
850℃ 63.50 21.30 34.50 18.27% 1.75 Q, K, P, M, Am, H IV
900℃ 65.36 21.10 35.37 18.32% 1.74 Q, K, P, M, Am, H IV
950℃ 63.82 23.27 36.95 17.17% 1.78 Q, K, P, Am, H EV
1,000℃ 59.26 26.84 36.54 15.68% 1.82 Q, K, P, Mu, H EV
1,050℃ 55.99 27.00 32.96 9.97% 1.99 Q, K, P, Mu, H, T EV
1,100℃ 44.81 24.28 23.08 4.71% 2.18 Q, K, P, Mu, H, T CV
1,150℃ 43.91 23.03 20.86 2.52% 2.22 Q, Mu, H, T CV
1,200℃ 40.80 14.54 10.64 0.63% 2.25 Q, Mu, H, T CV

1Abbreviations: Q; quartz, K; K-feldspar, P; plagioclase, M; mica, Am; amphibole, Mu; mullite, H; hematite, T; tridymite.

2NV; no vitrification, IV; initial vitrification, EV; extensive vitrification, CV; continuous vitrification(Maniatis and Tite, 1981).

Econ. Environ. Geol. 2021;54:671-87 https://doi.org/10.9719/EEG.2021.54.6.671
© 2021 Econ. Environ. Geol.