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Hundholmenite-(Y)

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Hundholmenite-(Y)

Stetind pegmatite, Tysfjord, Nordland, Norway
Hundholmenite-(Y)

Hundholmen, Tysfjord, Nordland, Norway
Hundholmenite-(Y), etc.

Stetind pegmatite, Tysfjord, Nordland, Norway
Hundholmenite-(Y)

Stetind pegmatite, Tysfjord, Nordland, Norway
Hundholmenite-(Y)

Hundholmen, Tysfjord, Nordland, Norway
Hundholmenite-(Y), etc.

Stetind pegmatite, Tysfjord, Nordland, Norway
Hundholmenite-(Y)

Stetind pegmatite, Tysfjord, Nordland, Norway
Hundholmenite-(Y)

Hundholmen, Tysfjord, Nordland, Norway
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About Hundholmenite-(Y)Hide

The Hundholmen locality

Hundholmen, Tysfjord, Nordland, Norway
Formula:
(Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48
Colour:
Pale brown
Lustre:
Adamantine, Vitreous
Hardness:
5 - 6
Specific Gravity:
5.206 (Calculated)
Crystal System:
Trigonal
Member of:
Vicanite Group
Name:
After the type locality of Hundholmen, Tysfjord, Nordland County, Norway.
Isostructural with:
Okanoganite-(Y), Vicanite-(Ce)
Vicanite Group.


Classification of Hundholmenite-(Y)Hide

IMA status:
Approved
Approval Year:
2006
First Published:
2007
Strunz 8th ed.:
8/B.33-
Nickel-Strunz 10th (pending) ed.:
9.AJ.35

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4

Physical Properties of Hundholmenite-(Y)Hide

Lustre:
Adamantine, Vitreous
Transparency:
Translucent
Colour:
Pale brown
Streak:
White
Hardness:
5 - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
5.206 g/cm3 (Calculated)

Optical Data of Hundholmenite-(Y)Hide

Type:
Uniaxial (-)
Pleochroism:
Non-pleochroic

Chemical Properties of Hundholmenite-(Y)Hide

Formula:
(Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48
IMA Formula:
(Y,REE,Ca,Na)15(Al,Fe3+)CaxAs3+1-x(Si,As5+)Si6B3(O,F)48
Elements listed:
Al, As, B, Ca, F, Fe, Na, O, Si, Y - search for minerals with similar chemistry

Crystallography of Hundholmenite-(Y)Hide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 10.675(6) Å, c = 27.02(2) Å
Ratio:
a:c = 1 : 2.531
Unit Cell V:
2667 ų
Z:
3
Morphology:
Subhedral crystals up to 1 mm diameter.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.38 (33)
3.114 (43)
3.095 (29)
2.972 (100)
2.947 (76)
2.924 (66)
2.681 (36)
1.978 (37)

Type Occurrence of Hundholmenite-(Y)Hide

Type Locality:
ⓘ Hundholmen, Tysfjord, Nordland, Norway
Place of Conservation of Type Material:
Natural History Museum, University of Oslo, 41590.
Geological Setting of Type Material:
Granitic pegmatite.
Associated Minerals at Type Locality:
Fluorite
Reference:
Raade, G., Johnsen, O., Erambert, M., Petersen, O.V. (2007) Hundholmenite-(Y) from Norway – a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine: 71: 179-192.
Download:
http://rruff.info/rruff_1.0/uploads/MM71_179.pdf

Synonyms of Hundholmenite-(Y)Hide

Relationship of Hundholmenite-(Y) to other SpeciesHide

Member of:
Vicanite Group
Other Members of this group:
Laptevite-(Ce)Ca6(Fe2+,Mn2+)Y3REE7(SiO4)3(PO4)(B3Si3O18)(BO3)F11Trig. 3m : R3m
Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14Trig. 3m : R3m
Proshchenkoite-(Y)Ca(Y,REE,Ca,Na,Mn)15Fe2+(P,Si)Si6B3O34F14Trig. 3m : R3m
Vicanite-(Ce)(Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7Trig.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Yttrofluorite8 photos of Hundholmenite-(Y) associated with Yttrofluorite on mindat.org.
Bastnäsite-(Ce)2 photos of Hundholmenite-(Y) associated with Bastnäsite-(Ce) on mindat.org.
Allanite-(Ce)1 photo of Hundholmenite-(Y) associated with Allanite-(Ce) on mindat.org.
Thalénite-(Y)1 photo of Hundholmenite-(Y) associated with Thalénite-(Y) on mindat.org.
Keiviite-(Y)1 photo of Hundholmenite-(Y) associated with Keiviite-(Y) on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.AJ.Hingganite-(Nd)(Nd,Y,Ce,Sm)2(◻,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.05Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
9.AJ.05Ominelite(Fe2+,Mg)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
9.AJ.10Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3Orth. mmm (2/m 2/m 2/m)
9.AJ.10Holtite(Ta0.6◻0.4)Al6BSi3O18(O,OH)2.25Orth. mmm (2/m 2/m 2/m) : Pnma
9.AJ.10Magnesiodumortierite(Mg,Ti,◻(Al,Mg)2Al4Si3O18-y(OH)yB y = 2-3Orth.
9.AJ.15GarrelsiteBa3NaSi2B7O16(OH)4Mon.
9.AJ.20BakeriteCa4(H5B5Si3O20)Mon. 2/m : P21/b
9.AJ.20DatoliteCaB(SiO4)(OH)Mon. 2/m : P21/b
9.AJ.20Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10Mon. 2/m
9.AJ.20Gadolinite-(Y)Y2Fe2+Be2Si2O10Mon. 2/m : P21/b
9.AJ.20Hingganite-(Ce)(Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.20Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.20Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
9.AJ.20HomiliteCa2(Fe2+,Mg)B2Si2O10Mon. 2/m : P21/b
9.AJ.20Melanocerite-(Ce)(Ce,Ca)5(SiO4,BO4)3(OH,0)Hex.
9.AJ.20Minasgeraisite-(Y)BiCa(Y,Ln)2(□,Mn)2(Be,B,Si)4Si4O16 [(OH),O]4Tric. 1 : P1
9.AJ.20Calcybeborosilite-(Y)(Y,Ca)2(□,Fe2+)(B,Be)2[SiO4]2(OH,O)2Mon.
9.AJ.25Stillwellite-(Ce)(Ce,La,Ca)BSiO5
9.AJ.30Cappelenite-(Y)Ba(Y,Ce)6Si3B6O24F2Trig. 3 : P3
9.AJ.35Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14Trig. 3m : R3m
9.AJ.35Vicanite-(Ce)(Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7Trig.
9.AJ.35Proshchenkoite-(Y)Ca(Y,REE,Ca,Na,Mn)15Fe2+(P,Si)Si6B3O34F14Trig. 3m : R3m
9.AJ.40JadariteLiNaSiB3O7(OH)Mon. 2/m

Fluorescence of Hundholmenite-(Y)Hide

In UV light:
Not fluorescent in LW or SW.

Other InformationHide

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

References for Hundholmenite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Raade, G., Johnsen, O., Erambert, M., Petersen, O.V. (2007) Hundholmenite-(Y) from Norway – a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine: 71: 179-192.

Internet Links for Hundholmenite-(Y)Hide

Localities for Hundholmenite-(Y)Hide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Italy
 
  • Liguria
    • Savona Province
      • Maremola Valley
        • Magliolo
Bracco, R., Balestra, C., Castellaro, F., Mills, S.J., Ma, C., Callegari, A.M., Boiocchi, M., Bersani, D., Cadoni, M., Ciriotti, M.E. (2012): Nuovi minerali di terre rare da Costa Balzi Rossi, Magliolo (SV), Liguria. Micro, 2/2012, 66-77.
Norway
 
  • Nordland
    • Hamarøy
Raade, G., Johnsen, O., Erambert, M., Petersen, O.V. (2007): Hundholmenite-(Y) from Norway – a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine, 71, 179-192.Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum.Skrift 38: 5-28
    • Tysfjord
      • Drag
        • Lapplægeret
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
Raade, G., Johnsen, O., Erambert, M., Petersen, O.V. (2007): Hundholmenite-(Y) from Norway – a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine, 71, 179-192.
Raade, G., Johnsen, O., Erambert, M., Petersen, O.V. (2007): Hundholmenite-(Y) from Norway – a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine, 71, 179-192.
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