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All Words Glossary
noun ( uncountable)
- (mineralogy) A rare mineral ZnAl?2O4 in the spinel group.
noun
- (mineralogy) A mineral, lead sulphide (PbS?), used as an ore for lead.
adjective
- of, or relating to w:Galen, Galen, his followers, principles or practices, especially relating to vegetable preparations used as remedies
noun
- (mineralogy) a saline evaporite, consisting of a mixed sodium and calcium carbonate
noun
- (mineralogy) a saline evaporite, consisting of a mixed sodium and calcium sulphate
noun
- One who follows the dietetic system of w:Sylvester Graham, Sylvester Graham
noun
- An allotrope of carbon consisting of planes of carbon atoms arranged in hexagonal arrays with the planes stacked loosely. Used as a dry lubricant, and in lead pencils. Is edible.
- A composite plastic made with graphite fibers noted for light weight strength and stiffness.
- A grey colour.
noun
- (mineralogy) a yellow, amorphous mineral, a mixture of oxides and silicates of uranium, formed by weathering of pitchblende
noun
- A mineral consisting of the hydrated calcium sulphate. When calcined, it forms plaster of Paris.
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