Yamatoite
A discredited species name
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Formula:
(Mn2+,Ca)3(V3+,Al)2(SiO4)3
Hardness:
6 - 7
Crystal System:
Isometric
Name:
For the Yamato manganese mine.
Discredited member of Garnet Group; discredited since the type material was not truly Mn-V-dominant. Subsequently submitted as IMA 2009-026 (momoiite) using material from a different locality.
Originally reported from Yamato mine, Amami-Oshima Island, Kagoshima Prefecture, Nansei Archipelago, Japan.
Originally reported from Yamato mine, Amami-Oshima Island, Kagoshima Prefecture, Nansei Archipelago, Japan.
Unique Identifiers
Mindat ID:
7376
Long-form identifier:
mindat:1:1:7376:5
GUID
(UUID V4):
(UUID V4):
f16cf15f-a63e-4901-b42f-005309bfdf7b
IMA Classification of Yamatoite
Discredited
Classification of Yamatoite
9.AD.25 va
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
Physical Properties of Yamatoite
Hardness:
6 - 7 on Mohs scale
Optical Data of Yamatoite
Type:
Isotropic
Chemistry of Yamatoite
Mindat Formula:
(Mn2+,Ca)3(V3+,Al)2(SiO4)3
Crystallography of Yamatoite
Crystal System:
Isometric
Other Language Names for Yamatoite
Related Minerals - Strunz-mindat Grouping
9.AD. | Adrianite | Ca12(Al4Mg3Si7)O32Cl6 |
9.AD.05 | Larnite | Ca2SiO4 |
9.AD.10 | Calcio-olivine | Ca2SiO4 |
9.AD.15 | Merwinite | Ca3Mg(SiO4)2 |
9.AD.20 | Bredigite | Ca7Mg(SiO4)4 |
9.AD.25 | Andradite | Ca3Fe3+2(SiO4)3 |
9.AD.25 | Almandine | Fe2+3Al2(SiO4)3 |
9.AD.25 | Calderite | Mn2+3Fe3+2(SiO4)3 |
9.AD.25 | Goldmanite | Ca3V3+2(SiO4)3 |
9.AD.25 | Grossular | Ca3Al2(SiO4)3 |
9.AD.25 | Henritermierite | Ca3Mn3+2(SiO4)2[◻(OH)4] |
9.AD.25 | Kimzeyite | Ca3Zr2(SiO4)(AlO4)2 |
9.AD.25 | Knorringite | Mg3Cr2(SiO4)3 |
9.AD.25 | Majorite | Mg3(MgSi)(SiO4)3 |
9.AD.25 | Morimotoite | Ca3(TiFe2+)(SiO4)3 |
9.AD.25 | Pyrope | Mg3Al2(SiO4)3 |
9.AD.25 | Schorlomite | Ca3Ti2(SiO4)(Fe3+O4)2 |
9.AD.25 | Spessartine | Mn2+3Al2(SiO4)3 |
9.AD.25 | Uvarovite | Ca3Cr2(SiO4)3 |
9.AD.25 | Wadalite | (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3 |
9.AD.25 va | Hydrougrandite | (Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2] |
9.AD.25 | Holtstamite | Ca3Al2(SiO4)2[◻(OH)4] |
9.AD.25 | Khoharite | Mg3Fe3+2(SiO4)3 |
9.AD.25 | Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 |
9.AD.25 | Toturite | Ca3Sn2(SiO4)(Fe3+O4)2 |
9.AD.25 | Momoiite | Mn2+3V3+2(SiO4)3 |
9.AD.25 | Eringaite | Ca3Sc2(SiO4)3 |
9.AD.25 | Irinarassite | Ca3Sn2(SiO4)(AlO4)2 |
9.AD.25 | Menzerite-(Y) | (Y2Ca)Mg2(SiO4)3 |
9.AD.25 | Eltyubyuite | Ca12Fe3+10Si4O32Cl6 |
9.AD.25 | Blythite | Mn2+3Mn3+2[SiO4]3 |
9.AD.25 | Skiagite | Fe2+3Fe3+2[SiO4]3 |
9.AD.25 | Hutcheonite | Ca3Ti2(SiO4)(AlO4)2 |
9.AD.25 | UM1984-37-SiO:CrMn | Mn2+3Cr3+2(SiO4)3 |
9.AD.25 | Rubinite | Ca3Ti3+2Si3O12 |
9.AD.25 | Nikmelnikovite | Ca12(Fe2+Fe3+3Al3◻)[SiO4]6[◻(OH)4]5◻4 |
9.AD.30 va | Auerlite | near Th(Si,P)O4 |
9.AD.30 | Coffinite | U(SiO4) · nH2O |
9.AD.30 | Hafnon | HfSiO4 |
9.AD.30 | Thorite | Th(SiO4) |
9.AD.30 | Zircon | Zr(SiO4) |
9.AD.30 | Stetindite-(Ce) | Ce(SiO4) |
9.AD.35 | Huttonite | ThSiO4 |
9.AD.35 | Tombarthite-(Y) | Y4(Si,H4)4O12-x(OH)4+2x |
9.AD.40 | Eulytine | Bi4(SiO4)3 |
9.AD.45 | Reidite | ZrSiO4 |
9.AD.55 | Jeffbenite | Mg3Al2Si3O12 |
Other Information
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 Yamatoite
mindat.org URL:
https://www.mindat.org/min-7376.html
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References for Yamatoite
Localities for Yamatoite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Japan | |
| Färber (n.d.) |
| Momoi (1964) |