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orthosilicates

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    Phenacite from Colorado
    Samuel L. Penfield
    American Journal of Science February 1887, s3-33 (194) 130-135; DOI: https://doi.org/10.2475/ajs.s3-33.194.130
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    Notes on the crystal beds of Topaz Butte
    Walter B. Smith
    American Journal of Science February 1887, s3-33 (194) 135; DOI: https://doi.org/10.2475/ajs.s3-33.194.135-a
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    On the topaz from the Thomas Range, Utah
    A. N. Alling
    American Journal of Science February 1887, s3-33 (194) 146-147; DOI: https://doi.org/10.2475/ajs.s3-33.194.146
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    On pseudomorphs of garnet from Lake Superior and Salida, Colorado
    Samuel L. Penfield and F. L. Sperry
    American Journal of Science October 1886, s3-32 (190) 307-311; DOI: https://doi.org/10.2475/ajs.s3-32.190.307
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    Contributions to mineralogy
    William Earl Hidden
    American Journal of Science September 1886, s3-32 (189) 204-211; DOI: https://doi.org/10.2475/ajs.s3-32.189.204
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    On the occurrence of topaz and garnet in lithophyses of rhyolite
    Charles Whitman Cross
    American Journal of Science June 1886, s3-31 (186) 432-438; DOI: https://doi.org/10.2475/ajs.s3-31.186.432
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    On the occurrence of fayalite in the lithophyses of obsidian and rhyolite in the Yellowstone National Park
    Joseph Paxson Iddings
    American Journal of Science July 1885, s3-30 (175) 58-60; DOI: https://doi.org/10.2475/ajs.s3-30.175.58
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    On the gahnite of Rowe, Massachusetts
    Arnold Guyot Dana
    American Journal of Science June 1885, s3-29 (174) 455-456; DOI: https://doi.org/10.2475/ajs.s3-29.174.455
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    Cause of the apparently perfect cleavage in American sphene (titanite)
    George Huntington Williams
    American Journal of Science June 1885, s3-29 (174) 486-490; DOI: https://doi.org/10.2475/ajs.s3-29.174.486
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    Topaz from Stoneham, Me
    Frank Wigglesworth Clarke and J. S. Diller
    American Journal of Science May 1885, s3-29 (173) 378-384; DOI: https://doi.org/10.2475/ajs.s3-29.173.378

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