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| Name: Tokkoite RRUFF ID: R140848 Ideal Chemistry: K2Ca4Si7O18(OH)F Locality: Magistral'nyi Area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara And Tokko Rivers Confluence, Aldan Shield, Sakha Republic, Eastern-Siberian Region, Russia Source: Rock Currier [view label] Owner: RRUFF Description: Yellow-tan prismatic crystals. Status: The identification of this mineral has been confirmed by X-ray diffraction. | 
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| POWDER DIFFRACTION | |||||
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| RRUFF ID: | R140848 | ||||
| Sample Description: | Single crystal, powder profile is calculated | ||||
| Cell Refinement Output: | a: 10.480(3)Å    b: 12.588(5)Å    c: 7.153(2)   Å alpha: 89.898(15)° beta: 99.766(15) ° gamma: 92.868(14) ° Volume: 928.8(8)Å3 Crystal System: triclinic | ||||
| DOWNLOADS: | 
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| REFERENCES for Tokkoite | |
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| American Mineralogist Crystal Structure Database Record: [view record] | |
| 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] | |
| Lazebnik K A, Nikishova L V, Lazebnik Y D (1986) Tokkoite - a new mineral, Mineralogiceskij Zhurnal, 8, issue 3 85-89 [view file] | |
| Hawthorne F C, Burke E A J, Ercit T S, Grew E S, Grice J D, Jambor J L, Puziewicz J, Roberts A C, Vanko D A (1988) New mineral names, American Mineralogist, 73, 189-199 [view file] | |
| Rozhdestvenskaya I V, Nikishova L V, Lazebnik Yu D, Lazebnik K A (1989) The crystal structure of tokkoite and its relation to the structure of tinaksite, Zeitschrift für Kristallographie, 189, 195-204 [view file] | |
| Jambor J L, Puziewicz J (1990) New mineral names, American Mineralogist, 75, 1209-1216 [view file] | |
| Lacalamita M, Mesto E, Kaneva E, Scordari F, Pedrazzi G, Vladykin N, Schingaro E (2017) Structure refinement and crystal chemistry of tokkoite and tinaksite from the Murun massif (Russia), Mineralogical Magazine, 81, 251-272 | |
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