Dictionary - Definition of FEATHER ALUM

Webster's Online Dictionary
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Definition: FEATHER ALUM


Part of Speech	Definition
Expression	1. (Min.), a hydrous sulphate of alumina, resulting from volcanic action, and from the decomposition of iron pyrites; -- called also halotrichite . --Ure.[Websters].
Source: Webster's Revised Unabridged Dictionary (1913)		Top

Definition: FEATHER ALUM


Part of Speech	Definition
Expression	1. (Min.), a hydrous sulphate of alumina, resulting from volcanic action, and from the decomposition of iron pyrites; -- called also halotrichite . --Ure.[Websters].
Source: Webster's Revised Unabridged Dictionary (1913)		Top

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Common Expressions: FEATHER ALUM

Expressions	Definition
Feather alum	(Min.), a hydrous sulphate of alumina, resulting from volcanic action, and from the decomposition of iron pyrites; -- called also halotrichite . --Ure. Source: Webster's Revised Unabridged Dictionary.
Source: compiled by the editor from various references; see credits.			Top

Specialty Expressions: FEATHER ALUM

Expressions	Domain	Definition
Feather alum	Mining	See: alunogen; halotrichite. (references)
Source: compiled by the editor from various references; see credits.			Top