gold mine of information

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gold mine of information

Something that yields a lot of valuable or useful information. I've never met any of these relatives before, so your photo albums will be a gold mine of information.
See also: gold, information, mine, of
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

(a) gold mine of information

Fig. someone or something that is full of information. Grandfather is a gold mine of information about World War I. The new encyclopedia is a positive gold mine of useful information.
See also: gold, information, mine, of
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
It is a Godsend for journalists as the report is a gold-mine of information about procedural irregularities, low-level corruption and minor abuses of power in the public sector.
For others the text is a gold-mine of information about life in this period when London grew threefold to hold over three million souls in a rich pot pourri of little Londons which coexisted more or less peacefully.
That gold-mine of information on the study of Cretan society and life provides a launching pad for her own new work, while its Preface proves to be, in some ways, a tiny preliminary sketch for this next undertaking.
Her book is perhaps more useful for providing a gold-mine of information for students and scholars of European and labor history, especially those who do not read Italian.
This short work is a gold-mine of information. But, to push the metaphor a little further, the ores are sometimes difficult to extricate; and their worth cannot always be readily ascertained without careful assay.
Her work provides a gold-mine of information for those unfamiliar with the social and cultural history of Poland and suggests an alternative European tradition which will well serve those interested in comparative approaches.