Important Update News
The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
We are grateful to NASA for the funding of this effort.
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Name: Loomisite RRUFF ID: R210017 Ideal Chemistry: Ba[Be2P2O8]·H2O Locality: Big Chief mine, Pennington County, South Dakota, USA Source: Tom Loomis TL256A [view label] Owner: RRUFF Description: White acicular divergent crystals, associated with white bladed dondoellite, and yellow needle earlshannonite. Status: unconfirmed |
CHEMISTRY | ||||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | ||||||
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RRUFF ID: | R210017 | |||||
Cell Refinement Output: |
a: 7.6457(2) Å b: 9.4427(3) Å c: 4.7512(2) Å alpha: 90° beta: 91.197(3)° gamma: 90° Volume: 343.37(1) Å3 Crystal System: monoclinic |
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REFERENCES for Loomisite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Miyawaki R, Hatert F, Pasero M, Mills S J (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) - Newsletter 67, European Journal of Mineralogy, 34, 359-364 [view file] |
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Yang H, Gu X, Gibbs R B, Downs R T (2023) Loomisite, Ba[Be2P2O8]⋅H2O, the first natural example with the zeolite ABW-type framework, from Keystone, Pennington County, South Dakota, USA, Mineralogical Magazine, 87, 79-85 [view file] |
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