columbite

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Tungstous oxide; a new oxide of tungsten-associated with columbous oxide
W. P. Headden

American Journal of Science April 1893, s3-45 (268) 280-286; DOI: https://doi.org/10.2475/ajs.s3-45.268.280
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Columbite of the Black Hills, South Dakota
William Phipps Blake

American Journal of Science May 1891, s3-41 (245) 403-405; DOI: https://doi.org/10.2475/ajs.s3-41.245.403
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Columbite and tantalite from the Black Hills of South Dakota
William Parker Headden

American Journal of Science February 1891, s3-41 (242) 89-102; DOI: https://doi.org/10.2475/ajs.s3-41.242.89
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Columbite in the Black Hills of Dakota
William Phipps Blake

American Journal of Science November 1884, s3-28 (167) 340-341; DOI: https://doi.org/10.2475/ajs.s3-28.167.340
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On Shepard's paracolumbite
F. Pisani

American Journal of Science May 1864, s2-37 (111) 359; DOI: https://doi.org/10.2475/ajs.s2-37.111.359

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