Gauge Red

Alternate Names: Guage Red, Gage Red

Description: High iron fireclay

Oxide	Analysis	Formula
SiO2	40.80%	2.47
Al2O3	28.00%	1.00
Fe2O3	18.10%	0.41
TiO2	1.20%	0.05
MgO	0.20%	0.02
K2O	0.14%	0.01
LOI	10.00%	n/a
Oxide Weight		326.55
Formula Weight		362.83

Notes

Replaced Carbondale Red and C-Red in 2021.

~5% retained on 200 mesh screen.
~8% quartz mineral.
Cone 04 water absorption: 23%
Cone 5 water absorption: 16%
Cone 10 water absorption: 11%
Cone 10R water absorption: 2%

In 2024 this is only being sold to selected customers, only about 800 tons per year are being mined.

Related Information

Links

Materials	Carbondale Clay
Materials	C-Red Clay
URLs	https://www.clayimco.com/industrial-clays IMCO information on their mined clays

By Tony Hansen
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