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    doi = "10.7907/DP95-HX65"
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@other{https://resolver.caltech.edu/CaltechETD:etd-06302006-083245,
    title = "Studies of Amphibolites and Constituent Hornblendes From an Area of Progressive Metamorphism Near Lead, South Dakota",
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    doi = "10.7907/V56J-JE76"
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@other{https://resolver.caltech.edu/CaltechETD:etd-03092006-111512,
    title = "The Distribution and Composition of Sulfide Minerals at Balmat, New York",
    url = "https://resolver.caltech.edu/CaltechETD:etd-03092006-111512",
    id = "record",
    doi = "10.7907/Y53K-NC70"
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@other{https://resolver.caltech.edu/CaltechTHESIS:03152010-114320646,
    title = "The Optical and X-Ray Properties of the Ferromagnesian Olivine Minerals with Charts to Aid Identification",
    url = "https://resolver.caltech.edu/CaltechTHESIS:03152010-114320646",
    id = "record",
    doi = "10.7907/QWBE-DM48"
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@other{https://resolver.caltech.edu/CaltechTHESIS:04012010-091458107,
    title = "Geology of the Anorthosite Massif in Chester County, Pennsylvania",
    url = "https://resolver.caltech.edu/CaltechTHESIS:04012010-091458107",
    id = "record",
    doi = "10.7907/CNT4-DT95"
}