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Name: Howlite RRUFF ID: R110150 Ideal Chemistry: Ca2SiB5O9(OH)5 Locality: Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada Source: Donald M Doell and Brian Roulston [view label] Owner: RRUFF Description: Colorless bladed crystals, extracted by dissolving the matrix of sylvite/halite, associated with strontioginorite R110149, volkovskite R110151, ruitenbergite R110152, congolite R110153, and hilgardite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Quick search: [ All Howlite samples (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R110150.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 8.6110(7)Å b: 9.361(1)Å c: 12.822(1)Å alpha: 90° beta: 104.791(7)° gamma: 90° Volume: 999.3(2)Å3 Crystal System: monoclinic |
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REFERENCES for Howlite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Dana J D, Brush G J (1868) 601. Howlite, in A System of Mineralogy, Fifth Edition John Wiley and Sons New York 598-598 [view file] |
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How H (1868) II. Contributions to the mineralogy of Nova Scotia. III. Borates and other minerals in anhydrite and gypsum. Silicoborocalcite, a new mineral, The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 35, 32-41 [view file] |
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Papezik V S, Fong C C K (1975) Howlite and ulexite from the carboniferous gypsum and anhydrite beds in western Newfoundland, The Canadian Mineralogist, 13, 370-376 [view file] |
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Papezik V S, Fong C C K (1976) Howlite and ulexite from carboniferous gypsum and anhydrite beds in western Newfoundland addendum, The Canadian Mineralogist, 14, 393-393 [view file] |
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Griffen D T (1988) Howlite, Ca2SiB5O9(OH)5: Structure refinement and hydrogen bonding, American Mineralogist, 73, 1138-1141 [view file] |
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Grice J D, Gault R A, Van Velthuizen J (2005) Borate minerals of the Penobsquis and Millstream deposits, southern New Brunswick, Canada, The Canadian Mineralogist, 43, 1469-1487 [view file] |
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