Morimotoite (original) (raw)

A valid IMA mineral species

About MorimotoiteHide

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Formula:

Ca3(TiFe2+)(SiO4)3

Name:

Named by C. Henmi, I. Kusachi, and K. Henmi in 1992 in honor of Nobuo Morimoto (9 February 1925, Omachi, Nagano Prefecture, Japan - 13 September 2010, Kyoto, Japan), mineralogist and professor at Osaka University and Kyoto University.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2784:3

ffa39dcd-2703-46f5-90b4-91accf705499

IMA Classification of MorimotoiteHide

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Type description reference:

Henmi, Chiyoko, Kusachi, Isao, Henmi, Kitinosuke (1995) Morimotoite, Ca3TiFe2+Si3O12, a new titanian garnet from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 59 (394) 115-120 doi:10.1180/minmag.1995.59.394.11

Classification of MorimotoiteHide

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9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination

51.4.3c.3

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Physical Properties of MorimotoiteHide

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Hardness:

VHN50=1070 - 1150 kg/mm2 - Vickers

Fracture:

Irregular/Uneven, Sub-Conchoidal

Density:

3.75(2) g/cm3 (Measured) 3.80 g/cm3 (Calculated)

Optical Data of MorimotoiteHide

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Birefringence:

Isotropic minerals have no birefringence

Chemistry of MorimotoiteHide

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Mindat Formula:

Ca3(TiFe2+)(SiO4)3

Common Impurities:

Zr,Al,Mn,Mg

Crystallography of MorimotoiteHide

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Class (H-M):

m_3_m _(_4/_m_32/m ) - Hexoctahedral

Cell Parameters:

a = 12.162(3) Å

Unit Cell V:

1,798.93 ų (Calculated from Unit Cell)

Morphology:

subhedral embedded grains

Epitaxial Relationships of MorimotoiteHide

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Epitaxy Comments:

outer growth rim

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of MorimotoiteHide

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General Appearance of Type Material:

euhedral or subhedral grains up to 15 mm

Place of Conservation of Type Material:

National Science Museum, Tokyo, Japan.

Geological Setting of Type Material:

endoskarn in altered monzonite

Associated Minerals at Type Locality:

Reference:

Henmi, C., Kusachi, I., Henmi, K. (1995) Morimotoite, Ca3TiFe2+Si3O12, a new titanian garnet from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine: 59: 115-120.

Synonyms of MorimotoiteHide

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Other Language Names for MorimotoiteHide

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Relationship of Morimotoite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for MorimotoiteHide

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References for MorimotoiteHide

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Reference List:

Henmi, Chiyoko, Kusachi, Isao, Henmi, Kitinosuke (1995) Morimotoite, Ca3TiFe2+Si3O12, a new titanian garnet from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 59 (394) 115-120 doi:10.1180/minmag.1995.59.394.11

Grew, E. S., Locock, A. J., Mills, S. J., Galuskina, I. O., Galuskin, E. V., Hålenius, U. (2013) Nomenclature of the garnet supergroup. American Mineralogist, 98 (4) 785-811 doi:10.2138/am.2013.4201

Schingaro, Emanuela, Lacalamita, Maria, Mesto, Ernesto, Ventruti, Gennaro, Pedrazzi, Giuseppe, Ottolini, Luisa, Scordari, Fernando (2016) Crystal chemistry and light elements analysis of Ti-rich garnets. American Mineralogist, 101 (2) 371-384 doi:10.2138/am-2016-5439

Localities for MorimotoiteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.