Muromontite
A material that is NOT an approved mineral species
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Formula:
near Be2FeY2Si3O12
Name:
From a latinised form of the type locality.
Possibly identical with gadolinite, possibly a member of clinozoisite group.
Originally reported from Mauersberg, Annaberg-Buchholz, Erzgebirge, Saxony, Germany.
Originally reported from Mauersberg, Annaberg-Buchholz, Erzgebirge, Saxony, Germany.
Unique Identifiers
Mindat ID:
9255
Long-form identifier:
mindat:1:1:9255:1
GUID
(UUID V4):
(UUID V4):
fb1f9056-bec8-4ccb-995c-8e890f54169f
Classification of Muromontite
9.AJ.20
9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4
9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4
Chemical Properties of Muromontite
Formula:
near Be2FeY2Si3O12
Other Language Names for Muromontite
German:Muromontit
Spanish:Muromontita
Related Minerals - Strunz-mindat Grouping
9.AJ. | Hingganite-(Nd) | Nd2◻Be2Si2O8(OH)2 | Mon. 2/m : P21/b |
9.AJ. | Arrheniusite-(Ce) | CaMg[(Ce7Y3)Ca5](SiO4)4(Si2B3AsO18)(BO3)F11 | Trig. 3m : R3m |
9.AJ.05 | Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 | Orth. mmm (2/m 2/m 2/m) |
9.AJ.05 | Ominelite | (Fe2+,Mg)(Al,Fe3+)3(SiO4)(BO3)O2 | Orth. mmm (2/m 2/m 2/m) |
9.AJ.10 | Dumortierite | Al(Al2O)(Al2O)2(SiO4)3(BO3) | Orth. mmm (2/m 2/m 2/m) |
9.AJ.10 | Holtite | (Ta0.6◻0.4)Al6BSi3O18(O,OH)2.25 | Orth. mmm (2/m 2/m 2/m) : Pnma |
9.AJ.10 | Magnesiodumortierite | Mg(Al2OH)(Al2O)2(SiO4)3(BO3) | Orth. mmm (2/m 2/m 2/m) |
9.AJ.10 | Nioboholtite | (Nb0.6◻0.4)Al6BSi3O18 | Orth. mmm (2/m 2/m 2/m) : Pbcm |
9.AJ.10 | Titanoholtite | (Ti0.75◻0.25)Al6BSi3O18 | Orth. mmm (2/m 2/m 2/m) : Pbcm |
9.AJ.15 | Garrelsite | Ba3NaSi2B7O16(OH)4 | Mon. 2/m : B2/b |
9.AJ.20 | Datolite | CaB(SiO4)(OH) | Mon. 2/m : P21/b |
9.AJ.20 | Gadolinite-(Ce) | (Ce,La,Nd,Y)2Fe2+Be2Si2O10 | Mon. 2/m |
9.AJ.20 | Gadolinite-(Y) | Y2Fe2+Be2Si2O10 | Mon. 2/m : P21/b |
9.AJ.20 | Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 | Mon. 2/m : P21/b |
9.AJ.20 | Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 | Mon. 2/m : P21/b |
9.AJ.20 | Hingganite-(Yb) | (Yb,Y,REE)2◻Be2[SiO4]2(OH)2 | Mon. 2/m : P21/b |
9.AJ.20 | Homilite | Ca2(Fe2+,Mg)B2Si2O10 | Mon. 2/m : P21/b |
9.AJ.20 | Melanocerite-(Ce) | (Ce,Ca)5(SiO4,BO4)3(OH,0) | Hex. |
9.AJ.20 | Minasgeraisite-(Y) | CaBe2Y2Si2O10 | Tric. 1 : P1 |
9.AJ.20 | Calcybeborosilite-(Y) | (Y,Ca)2(◻,Fe2+)(B,Be)2[SiO4]2(OH,O)2 | Mon. |
9.AJ.20 | Gadolinite-(Nd) | Nd2Fe2+Be2O2(SiO4)2 | Mon. 2/m : P21/b |
9.AJ.20 | Unnamed (OH-analogue of Gadolinite-(Y)) | (Y,Ca)2(Fe,◻)Be2Si2O8(OH,O)2 | Mon. 2/m |
9.AJ.25 | Stillwellite-(Ce) | (Ce,La,Ca)BSiO5 | Trig. 3 : P31 |
9.AJ.30 | Cappelenite-(Y) | Ba(Y,Ce)6Si3B6O24F2 | Trig. 3 : P3 |
9.AJ.35 | Okanoganite-(Y) | (Na,Ca)3(Y,Ce)12Si6B2O27F14 | Trig. 3m : R3m |
9.AJ.35 | Vicanite-(Ce) | (Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7 | Trig. 3m : R3m |
9.AJ.35 | Hundholmenite-(Y) | (Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48 | Trig. 3m : R3m |
9.AJ.35 | Proshchenkoite-(Y) | Ca(Y,REE,Ca,Na,Mn)15Fe2+(P,Si)Si6B3O34F14 | Trig. 3m : R3m |
9.AJ.35 | Laptevite-(Ce) | Ca6(Fe2+,Mn2+)Y3REE7(SiO4)3(PO4)(B3Si3O18)(BO3)F11 | Trig. 3m : R3m |
9.AJ.40 | Jadarite | LiNaSiB3O7(OH) | Mon. 2/m |
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 Muromontite
mindat.org URL:
https://www.mindat.org/min-9255.html
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Please feel free to link to this page.
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References for Muromontite
Reference List:
Localities for Muromontite
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.
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