Well, of my thirty thousand tried acres, a hundred only are diamondiferous.
"A Simpleton" by Charles Reade
Water is kept flowing into the tub through one opening, as the diamondiferous soil is worked in through another.
"Yankee Girls in Zulu Land" by Louise Vescelius-Sheldon
During 1909 various companies were formed to exploit the diamondiferous area.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 7" by Various
Those days in dark diamondiferous caverns were full of strange experiences.
"South Africa and the Transvaal War, Vol. IV (of 6)" by Louis Creswicke