C
Clifford Frondel
Researcher at Harvard University
Publications - 119
Citations - 2859
Clifford Frondel is an academic researcher from Harvard University. The author has contributed to research in topics: Uranium & Tourmaline. The author has an hindex of 26, co-authored 119 publications receiving 2788 citations. Previous affiliations of Clifford Frondel include University of Tokyo & Smithsonian Astrophysical Observatory.
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X-ray powder data for uranium and thorium minerals
TL;DR: In this paper, the X-ray powder diffraction data for the known minerals that contain uranium or thorium as an essential constituent are presented, except for a few minerals for which there are no reliable data owing to lack of authentic specimens.
Journal ArticleDOI
Quartz fibers as templates for biopolymers.
TL;DR: Geochemical evidence indicates that quartz was deposited in the early Precambrian ocean either by direct crystallization from seawater or by recrystallization of amorphous silica, suggesting the possible role of quartz fibers as a template and co-polymer in the passage of biomonomers in the pre-biotic ocean to the long-chain biopolymers such as nucleic acids and proteins that are involved in life processes.
Journal Article
Studies of uranium minerals (V): Phosphuranylite
TL;DR: The ill-defined uranium mineral phosphuranylite, hitherto known only from North Carolina on the basis of the original description by Genth (1879) and a later optical description by Larsen (1921), is redescribed from twelve new localities as mentioned in this paper.
Journal Article
Synthesis of the scandium analogue of beryl: Errata
Clifford Frondel,Jun Ito,Jun Ito +2 more
TL;DR: Frsurn, D. N. as discussed by the authors, W. H. Hrrr, W. L., W. BnxrunN, AND C. Fnononl (1951) System oJ Mineralogy, Vol 2.