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Schäferite

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About SchäferiteHide

Formula:
Ca2NaMg2(VO4)3
Colour:
Orange-red
Lustre:
Vitreous
Hardness:
5
Crystal System:
Isometric
Name:
Named after Helmut Schäfer (b. 1931), amateur mineralogist of Mayen-Kürrenberg, specialist in the minerals of the Eifel volcanic area, who discovered the mineral

Classification of SchäferiteHide

Approved
Approval Year:
1997
8.AC.25

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 7th ed.:
38.2.1.4

Physical Properties of SchäferiteHide

Vitreous
Colour:
Orange-red
Streak:
Yellow
Hardness:

Optical Data of SchäferiteHide

Type:
Isotropic

Chemical Properties of SchäferiteHide

Formula:
Ca2NaMg2(VO4)3
IMA Formula:
(NaCa2)Mg2(VO4)3

Crystallography of SchäferiteHide

Crystal System:
Isometric

Type Occurrence of SchäferiteHide

Synonyms of SchäferiteHide

Other Language Names for SchäferiteHide

Relationship of Schäferite to other SpeciesHide

Other Members of this group:
Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d

Common AssociatesHide

Associated Minerals Based on Photo Data:
Nosean4 photos of Schäferite associated with Nosean on mindat.org.
Whitlockite Group4 photos of Schäferite associated with Whitlockite Group on mindat.org.
Magnesioferrite1 photo of Schäferite associated with Magnesioferrite on mindat.org.
Pseudobrookite1 photo of Schäferite associated with Pseudobrookite on mindat.org.
Liebenbergite1 photo of Schäferite associated with Liebenbergite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AC.WopmayiteCa6Na3□Mn(PO4)3(PO3OH)4 Trig. 3m : R3c
8.AC.05HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
8.AC.10Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
8.AC.10HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
8.AC.10JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
8.AC.10Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
8.AC.10NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
8.AC.10VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
8.AC.10FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
8.AC.10BradaczekiteNaCu4(AsO4)3Mon. 2/m : B2/b
8.AC.10YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
8.AC.10GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
8.AC.15BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b
8.AC.15Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
8.AC.15Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
8.AC.15Ferrorosemaryite◻NaFe2+Fe3+Al(PO4)3Mon.
8.AC.15Qingheiite-(Fe2+)Na2Fe2+MgAl(PO4)3Mon. 2/m : P21/m
8.AC.18ManitobaiteNa16Mn2+ 25Al8(PO4)30Mon. m : Pb
8.AC.20MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna
8.AC.25Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.30BrianiteNa2CaMg(PO4)2Mon. 2/m : P21/b
8.AC.35Vitusite-(Ce)Na3(Ce,La,Nd)(PO4)2Orth. mm2 : Pca21
8.AC.40Olgite(Sr,Ba)(Na,Sr,REE)2Na(PO4)2Trig. 3m (3 2/m) : P3m1
8.AC.40Bario-olgite(Ba,Sr)(Na,Sr,REE)2Na(PO4)2 · Trig. 3 : P3
8.AC.45StrontiowhitlockiteSr9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45WhitlockiteCa9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45MerrilliteCa9NaMg(PO4)7Trig. 3m : R3m
8.AC.45TuiteCa3(PO4)2Trig. 3m (3 2/m) : R3m
8.AC.45FerromerrilliteCa9NaFe2+(PO4)7Trig. 3m : R3c
8.AC.50Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
8.AC.50Galileiite{Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36Trig. 3 : R3
8.AC.50Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1
8.AC.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig.
8.AC.60KosnariteKZr2(PO4)3Trig. 3m (3 2/m) : R3c
8.AC.65Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2Mon. 2/m : P21/b
8.AC.70StanfielditeCa4Mg5(PO4)6Mon.
8.AC.75RonneburgiteK2MnV4O12Mon. 2/m
8.AC.80Tillmannsite(Ag3Hg)(VO4,AsO4)Tet. 4 : I4
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m

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 SchäferiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Krause, W., Blaß, G. and Effenberger, H. (1999): Schäferite, a new vanadium garnet from the Bellberg volcano, Eifel, Germany. Neues Jahrbuch für Mineralogie, Monatshefte 1999, 123-134.
Nakatsuka, A., Ikuta, Y., Yoshiasa, A., Iishi, K. (2003): Vanadate garnet, Ca2NaMg2V3O12. Acta Crystallographica, C59, i133-i135.

Internet Links for SchäferiteHide

Localities for SchäferiteHide

ⓘ - 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.
Germany
 
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Andernach
        • Nickenich
          • Nickenicher Sattel (Eicher Sattel)
Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors
      • Mayen
        • Ettringen
          • Bellerberg volcano
Krause, W., Blass, G., Effenberger, H., Schäferit, a new vanadium garnet from the Bellerberg volcano, Eifel, Germany, N. Jb. Miner. Mh. 1999 (3), 123-134
      • Mendig
        • Bell
Blaß, G. & Kruijen, F. (2013): Die Mineralogischen Neuigkeiten aus der Vulkaneifel. Mineralien-Welt 24 (3), 33-41.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District slag localities
        • Agios Konstantinos [St Constantine] (Kamariza)
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (II). Mineralien-Welt 25 (2), 82-95 (in German).; Koshlyakova, N.N., Zubkova, N.V., Pekov, I.V., Giester, G., Pushcharovsky, D.Yu., Chukanov, N.V., Voudouris, P., Magganas, A., Katerinopoulos, A. (2016): Crystal chemistry of a Ni-Mg-analogue of lyonsite from slags of Lavrion, Greece. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry 193, 113-120; Koshlyakova, N.N., Zubkova, N.V., Pekov, I.V., Giester, G., Pushcharovsky, D.Yu., Chukanov, N.V., Voudouris, P., Magganas, A., Katerinopoulos, A. (2017): Crystal chemistry of vanadate garnets from old metallurgical slags of Lavrion, Greece. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry, 194, 19-25.
Mineral and/or Locality  
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