Batch No.6
Rock Description= Upon collection the rocks are green-grey, with a blue undertone. Undetermined impurities colour the rocks. Sedimentary rock with an undetermined rock sub-category.
Preliminary Fire Temperature= 1060 C
Mill Time= 8 hours
Water Weight= 750.00g
Particulate Weight= 239.00g
Post-mill Protocol= 100 mesh, after sieve removed a significant amount of water leaving the slip thicker.
Material Behaviours= Following the ^06 preliminary firing, the particulate’s moderate iron content surfaced into warm dust on the surface and appears to have altered the rock to the core. The impurities at this stage, are presenting uniformly as iron-rich. The slip is a light brown colour, and the particulate settles quickly, requiring agitation to maintain consistency in application and regain workability. Particle film appears and reappears on the surface of the water once it settles, even following several 100 mesh sieving.
^5 Fire Results= Herein it is evident that the silica proportion is moderate. Already beginning to soften, turn into a glossier finish and with some novel transparency.
^10 Fire Results= From the results, the silica proportion reveals an increased transparency, now showing the underneath ceramic tile which it is affixed to at this final firing.
^5 Surface Description= At this temperature, the yellow colour is vibrant and consistent.
^10 Surface Description= At this high temperature, colours fade into a more neutral tone of brown. There is a slight orange halo around the edges from the particulate melting to the degree it did in this firing—pooling towards the centre.
ID 10:
[The surface is stable but its porosity is intact. While the particulate is edging on vitrification, the surface is a soft matte texture that translates as such in the picture plane. This square ceramic tile contains hues of a true yellow-sand colour with minor more saturated flecks of a deeper yellow present in the particulate. Towards the top left hand corner of the tile, the material pooled itself into a thicker application creating a darker haze over this region in the tile.]
ID 11:
[The sand-toned vitrified surface glistens, these glassy features span across the square ceramic tile. The flecks of grit in the particulate are small and black. The edges of the tile blush a deeper, slightly red-toned recession from a thinned out application. Overall the particulate lays with significant transparency over the ceramic tile.]
