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Language: en
Pages: 90
Pages: 90
Type: BOOK - Published: 2020-12-22 - Publisher:
"What constitutes a precious stone is the question which, at the onset, rises in the mind, and this question, simple as it seems, is one by no means easy to ans
Language: en
Pages: 134
Pages: 134
Type: BOOK - Published: 1911 - Publisher:
Language: en
Pages: 128
Pages: 128
Type: BOOK - Published: 2017-12-19 - Publisher: Forgotten Books
Excerpt from The Chemistry, Properties and Tests of Precious Stones What constitutes a precious stone is the question which, at the onset, rises in the mind, an
Language: en
Pages: 72
Pages: 72
Type: BOOK - Published: 2015-03-10 - Publisher: CreateSpace
"[...]contrary be wholly, or almost wholly, composed of upper-earth-crust materials, carried deep down by water, and subjected to the action of the same time an
Language: en
Pages:
Pages:
Type: BOOK - Published: 2008-12 - Publisher: