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Name: Howieite RRUFF ID: R060031 Ideal Chemistry: Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10 Locality: Laytonville quarry, near Longvale, California, USA Source: University of Arizona Mineral Museum 5923 [view label] Owner: RRUFF Description: Black bladed crystals associated with quartz and siderite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
| Quick search: [ All Howieite samples (2) ] | ||
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| POWDER DIFFRACTION | |||||||
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| RRUFF ID: | R060031.1 | ||||||
| Sample Description: | Powder, cell parameters are from single crystal | ||||||
| Cell Refinement Output: |
a: 10.154(3)Å b: 9.751(4)Å c: 9.577(2)Å alpha: 91.25(1)° beta: 70.71(1)° gamma: 109.09(1)° Volume: 841.9(7)Å3 Crystal System: triclinic |
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| REFERENCES for Howieite | |
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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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Agrell S O, Bown M G, McKie D (1965) Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville District, Mendicino Co., California, American Mineralogist, 50, 278-278 [view file] |
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Fleischer M (1969) New mineral names, American Mineralogist, 54, 326-330 [view file] |
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Wenk H R (1974) Howieite, a new type of chain silicate, American Mineralogist, 59, 86-97 [view file] |
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Ghent E D, Stout M Z, Erdmer P (1990) Howieite in blueschists, Pinchi Lake, British Columbia, The Canadian Mineralogist, 28, 855-858 [view file] |
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