fused mullite

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mullite — /mul uyt/, n. a rare clay mineral, aluminum silicate, Al6Si2O13, produced artificially during various melting and firing processes: used as a refractory. Also called porcelainite. [1924; after MULL, source of the rocks in which it was first… … Universalium
refractory — refractorily, adv. refractoriness, n. /ri frak teuh ree/, adj., n., pl. refractories. adj. 1. hard or impossible to manage; stubbornly disobedient: a refractory child. 2. resisting ordinary methods of treatment. 3. difficult to fuse, reduce, or… … Universalium
firebrick — /fuyeur brik /, n. a brick made of fire clay. [1785 95; FIRE + BRICK] * * * ▪ building material also called Refractory Brick, refractory material consisting of nonmetallic minerals formed in a variety of shapes for use at high… … Universalium
List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… … Wikipedia
Investment casting — For investment casting in art, see lost wax casting. Investment casting, also called lost wax casting, is one of the oldest known metal forming techniques. From 5,000 years ago, when beeswax formed the pattern, to today’s high technology waxes,… … Wikipedia

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