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Name: Eckermannite RRUFF ID: R060320 Ideal Chemistry: NaNa2(Mg4Al)Si8O22(OH)2 Locality: Norra Karr Complex, near Granna, Ostergotsland, Sweden Source: Michael Scott S100151 [view label] Owner: RRUFF Description: Parallel aggregate of blue elongated bladed crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Mineral Group: [ amphibole (107) ] |
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: | R060320.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 9.712(2)Å b: 17.741(3)Å c: 5.2804(7)Å alpha: 90° beta: 104.040(9)° gamma: 90° Volume: 882.6(2)Å3 Crystal System: monoclinic |
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REFERENCES for Eckermannite | |
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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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Adamson O J (1942) Eckermannite, a new alkali amphibole. Preliminary note., Geologiska Föreningens i Stockholm Förhandlingar, 64, 329-334 [view file] |
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Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052 [view file] |
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Leake B E, Woolley A R, Arps C E S, Birch W D, Gilbert M C, Grice J D, Hawthorne F C, Kato A, Kisch H J, Krivovichev V G, Linthout K, Laird J, Mandarino J A, Maresch W V, Nickel E H, Rock N M S, Schumacher J C, Smith D C, Stephenson N C N, Ungaretti L, Whittaker E J W, Youzhi G (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, 35, 219-246 [view file] |
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Leake B E, Woolley A R, Birch W D, Burke E A J, Ferraris G, Grice J D, Hawthorne F C, Kisch H J, Krivovichev V G, Schumacher J C, Stephenson N C N, Whittaker E J W (2003) Nomenclature of amphiboles: additions and revisions to the International Mineralogical Associations 1997 recommendations, The Canadian Mineralogist, 41, 1355-1362 [view file] |
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Williams P A, Hatert F, Pasero M, Mills S J (2014) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 20. New minerals and nomenclature modifications approved in 2014, Mineralogical Magazine, 78, 549-558 [view file] |
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Oberti R, Boiocchi M, Hawthorne F C, Ball N A, Harlow G E (2015) Eckermannite revised: the new holotype from the Jade Mine Track, Myanmar - crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite, American Mineralogist, 100, 909-914 [view file] |
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Danisi R M, Armbruster T (2017) Crystal structure of potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese Field, South Africa, European Journal of Mineralogy, 29, 143-148 |
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Howe H, Pawley A R, Welch M D (2018) Sodium amphibole in the post-glaucophane high-pressure domain: The role of eckermannite, American Mineralogist, 103, 989-992 |
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