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johannsenite

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Johannsenite: Mineral information, data and localities.
Formula ... CaMn2+Si2O6 ... Colour ... Dark brown, pale brownish, blue-green, pale greenish, grey-white, colourless ... Lustre ... Vitreous ... Hardness ... 6 ... Specific ... www.mindat.org
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Johannsenite - Wikipedia
Johannsenite is a silicate mineral that is a member of the pyroxene family. The mineral can be produced in limestone or due a metamorphic process. en.wikipedia.org
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Johannsenite Mineral Data - Mineralogy Database
Mass of prismatic bluish green colored johannsenite crystals. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. webmineral.com
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johannsenite
johannsenite Min. (dʒəʊˈhænsənaɪt) [f. the name of Albert Johannsen (1871–1962), American geologist: see -ite1.] A brown, greyish, or greenish silicate of calcium and manganese, CaMnSi2O6, which often occurs with partial substitution of ferrous iron for manganese.1932 Amer. Mineralogist XVII. 575 Th... Oxford English Dictionary
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[PDF] Johannsenite CaMn2+Si2O6
(1938) Johannsenite, a new manganese pyroxene. Amer. Mineral., 23, 575{582 ... Peacor. (1967) Refinement of the crystal structure of johannsenite. Amer ... rruff.geo.arizona.edu
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The mineral Johannsenite information and pictures
Johannsenite is a rare member of the pyroxene group that is isomorphous with Diopside and Hedenbergite. It often occurs with black manganese oxide dendrites on ... www.minerals.net
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Johannsenite - Franklin Mineral Information - FOMS
Johannsenite is a calcium manganese silicate mineral of the pyroxene group and the Mn-analogue of diopside. Solid solution between johannsenite and diopside, ... www.fomsnj.org
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Johannsenite | Silicate Mineral, Magnesium Iron, Orthorhombic Crystal
A calcium-manganese-iron silicate mineral, johannsenite is produced either by metamorphic processes in altered limestones or is associated with pyrite or other ... www.britannica.com
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Johannsenite R140753 - RRUFF Database: Raman, X-ray, Infrared ...
Name: Johannsenite RRUFF ID: R140753 Ideal Chemistry: CaMnSi2O6. Locality: Franklin, Franklin Mining District, Sussex County, New Jersey, USA rruff.info
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Johannsenite Mineral Specimens - iRocks.com
The collection features their award-winning display suite, published specimens, notable fluorite sub-collection, and an extensive, important fluorescent ... www.irocks.com
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Bustamite
Bustamite is the high-temperature polymorph of CaMnSi2O6 and johannsenite is the low temperature polymorph. Vesuvianite, wollastonite, garnet, diopside, willemite, johannsenite, margarosanite and clinohedrite also may be present. wikipedia.org
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metasomatize
metasomatize, v. Geol. (mɛtəˈsəʊmətaɪz) [f. metasomatism + -ize.] trans. To change as a result of metasomatism. So metaˈsomatized ppl. a.1942 Mineral. Abstr. VIII. 242 Xenoliths of siltstone or sandstone country-rock are metasomatized to granophyre. 1955 Mineral. Mag. XXX. 681 The carbonatite contai... Oxford English Dictionary
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Pyroxene
Pyroxene minerals Clinopyroxenes (monoclinic) Aegirine, Augite, Clinoenstatite, Diopside, Esseneite, Hedenbergite, Jadeite, Jervisite, Johannsenite wikipedia.org
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List of minerals recognized by the International Mineralogical Association (J)
Johanngeorgenstadtite (alluaudite: IMA2019-122) 8.0 [no] [no] () Johannite (johannite: 1830) 7.EB.05 (IUPAC: copper diuranyl dihydro disulfate octahydrate) Johannsenite wikipedia.org
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锰硅灰石
锰硅灰石是 CaMnSi2O6 的高温晶型，钙锰辉石（johannsenite） 是低温晶型。 反转发生在 830 °C (1,530 °F) 。 锰硅灰石呈浅玫瑰红色至褐红色， 透明至半透明。具玻璃光泽。摩氏硬度为5.5-6.5， 相对密度3.32-3.421 。 标准产地 原先标准产地在墨西哥普埃布拉州的 Tetela de Jonotla，后来发现该标本是钙锰辉石(johannsenite)和蔷薇辉石的混合物， 因此现在的标准产地是美国新泽西州苏塞克斯县富兰克林的富兰克林矿。 锰硅灰石 和钙锰辉石johansennite 都在富兰克林被发现。 wikipedia.org
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