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Answer for the clue "Substantial domestic plot — study extracted mineral ", 7 letters:
realgar

Alternative clues for the word realgar

Word definitions for realgar in dictionaries

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Realgar \Re*al"gar\ (r[-e]*[a^]l"g[~e]r), n. [F. r['e]algar, Sp. rejalgar, Ar. rahj al gh[=a]r powder of the mine.] (Min.) Arsenic sulphide, a mineral of a brilliant red color; red orpiment. It is also an artificial product.

WordNet Word definitions in WordNet
n. a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic

Wiktionary Word definitions in Wiktionary
n. (context mineralogy English) A mineral, arsenic sulfide (arsenicsulfur), often associated with orpiment and stibnite in lead, silver and gold ores.

Wikipedia Word definitions in Wikipedia
Realgar , α -AsS, is an arsenic sulfide mineral, also known as "ruby sulphur" or "ruby of arsenic". It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, ...

Usage examples of realgar.

Alkali, salt, potassium carbonate, And our burnt matters, and coagulate, Clay mixed with horses' or men's hair, and oil Of tartar, alum, glass, yeast, wort, argoil, Realgar, and our matters absorbent, And with them, too, our matters resorbent, And how we practised silver citrination And our cementing and our fermentation, Our moulds and testers, aye, and many more.

XXIX REALGAR ELIXIR REALGAR (Arabic rehj al-ghar, 'Powder of the Cave', Chinese xionghuang, 'Male Yellow', the mineral disulphide of arsenic) was a substance much used in traditional Chinese and Indian medicine.