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This last was the real diamantiferous soil.— Scientific American Supplement, No. 392, July 7, 1883
A screen, or cylinder wash mill and elevator, were used for dealing with the diamantiferous soil, and were described.— Scientific American Supplement, No. 392, July 7, 1883
But the work in the mines is not so pleasant, and the two thousand negroes employed in that work by the government are obliged even to divert the watercourses to get at the diamantiferous sand.— Eight Hundred Leagues on the Amazon
Many have suspected that these regions will prove diamantiferous; and it is reported that an experienced French mineralogist, who has visited the South African diggings, landed at Assini and proposed to canoe up the Tando River to the Tákwá mines, prospecting in search of his specialty.— To The Gold Coast for Gold, Vol. II A Personal Narrative
The aspect of the land is diamantiferous; [Footnote: I hear with the greatest pleasure that a syndicate has been formed for working the diamond-diggings of Golconda, a measure advocated by me for many years.— To The Gold Coast for Gold, Vol. II A Personal Narrative

Century Dictionary (1)
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