Important: Safety Warning
This page gives alloy formulas containing lead and antimony and specifies them for teapots and spoons. Both metals migrate into food and drink and cause cumulative poisoning; such alloys are prohibited in food-contact use today.
This information has been left in for historical purposes but should not be acted upon.
Q
Quartz
The purest condition of silicon is that of quartz, in which it forms hexagonal crystals terminated by six-sided summits. It is a very…
Quartzite
A sedimentary sandstone which by metamorphic action has been converted into a hard rock possessing a highly refractory nature, for which…
Queen's Metal
For teapots, spoons, etc. Tin 100, bismuth 1, antimony 8, copper 4; or, tin 9, bismuth 1, antimony 1, lead 1. See WHITE METALS; BRITANNIA…
Quicksilver
A name given by the ancients to the metal mercury. See MERCURY. Racks for Cores.--Brackets projecting from the walls of the foundry oven on…
Quart – Quicklime
The fourth part of a gallon. Two pints make one quart. A curved section of piping, the ends of which finish at an angle of 90 deg.