Schäferite
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About Schäferite
Formula:
(NaCa2)Mg2(VO4)3
Colour:
Orange-red
Lustre:
Vitreous
Hardness:
5
Crystal System:
Isometric
Member of:
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 Schäferite
Approved
Approval year:
1997
7/A.08-45
8.AC.25
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
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 Schäferite
Optical Data of Schäferite
Type:
Isotropic
Chemical Properties of Schäferite
Formula:
(NaCa2)Mg2(VO4)3
Crystallography of Schäferite
Crystal System:
Isometric
Type Occurrence of Schäferite
Synonyms of Schäferite
Other Language Names for Schäferite
Relationship of Schäferite to other Species
Member of:
Other Members of this group:
Berzeliite | (NaCa2)Mg2(AsO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
Manganberzeliite | (NaCa2)Mn2+2(AsO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
Palenzonaite | (NaCa2)Mn2+2(VO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
Common Associates
Associated Minerals Based on Photo Data:
4 photos of Schäferite associated with Nosean | Na8(Al6Si6O24)(SO4) · H2O |
4 photos of Schäferite associated with Whitlockite Group | |
1 photo of Schäferite associated with Magnesioferrite | MgFe3+2O4 |
1 photo of Schäferite associated with Pseudobrookite | Fe2TiO5 |
1 photo of Schäferite associated with Liebenbergite | Ni2SiO4 |
Related Minerals - Nickel-Strunz Grouping
8.AC. | Angarfite | NaFe3+5(PO4)4(OH)4 · 4H2O | Orth. 2 2 2 : C2 2 21 |
8.AC. | Wopmayite | Ca6Na3◻Mn(PO4)3(PO3OH)4 | Trig. 3m : R3c |
8.AC.X | Dyrnaesite-(La) | Na8Ce4+(La,REE)2(PO4)6 | Orth. mmm (2/m 2/m 2/m) : Pnma |
8.AC. | Edtollite | K2NaCu5Fe3+O2(AsO4)4 | Tric. 1 : P1 |
8.AC. | Alumoedtollite | K2NaCu5AlO2(AsO4)4 | Tric. 1 : P1 |
8.AC.05 | Howardevansite | NaCuFe2(VO4)3 | Tric. 1 : P1 |
8.AC.10 | Alluaudite | (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3 | Mon. |
8.AC.10 | Arseniopleite | NaCaMnMn2(AsO4)3 | Mon. 2/m |
8.AC.10 | Caryinite | (Na,Pb)(Ca,Na)CaMn2+2(AsO4)3 | Mon. 2/m |
8.AC.10 | Ferroalluaudite | (Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Hagendorfite | NaCaMn2+Fe2+2(PO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Johillerite | Na(Mg,Zn)3Cu(AsO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Maghagendorfite | (Na,◻)MgMn2+(Fe2+,Fe3+)2(PO4)3 | Mon. |
8.AC.10 | Nickenichite | Na0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Varulite | NaCaMn2+Mn2+2(PO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Ferrohagendorfite | NaCaFe2+Fe2+2(PO4)3 | Mon. |
8.AC.10 | Bradaczekite | NaCu4(AsO4)3 | Mon. 2/m : B2/b |
8.AC.10 | Yazganite | NaFe3+2(Mg,Mn2+)(AsO4)3 · H2O | Mon. 2/m : B2/b |
8.AC.10 | Groatite | NaCaMn2(PO4)[PO3(OH)]2 | Mon. 2/m : B2/b |
8.AC.15 | Bobfergusonite | Na2Mn5FeAl(PO4)6 | Mon. 2/m : P2/b |
8.AC.15 | Ferrowyllieite | (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 | Mon. 2/m : P21/b |
8.AC.15 | Qingheiite | NaMn3+Mg(Al,Fe3+)(PO4)3 | Mon. 2/m : P21/b |
8.AC.15 | Rosemaryite | (Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3 | Mon. 2/m : P21/b |
8.AC.15 | Wyllieite | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3 | Mon. 2/m |
8.AC.15 | Ferrorosemaryite | ◻NaFe2+Fe3+Al(PO4)3 | Mon. |
8.AC.15 | Qingheiite-(Fe2+) | Na2Fe2+MgAl(PO4)3 | Mon. 2/m : P21/m |
8.AC.18 | Manitobaite | Na16Mn2+25Al8(PO4)30 | Mon. m : Pb |
8.AC.20 | Marićite | NaFe2+(PO4) | Orth. mmm (2/m 2/m 2/m) : Pmna |
8.AC.25 | Berzeliite | (NaCa2)Mg2(AsO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
8.AC.25 | Manganberzeliite | (NaCa2)Mn2+2(AsO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
8.AC.25 | Palenzonaite | (NaCa2)Mn2+2(VO4)3 | Iso. m3m (4/m 3 2/m) : Ia3d |
8.AC.30 | Brianite | Na2CaMg(PO4)2 | Mon. 2/m : P21/b |
8.AC.35 | Vitusite-(Ce) | Na3(Ce,La,Nd)(PO4)2 | Orth. mm2 : Pca21 |
8.AC.40 | Olgite | (Sr,Ba)(Na,Sr,REE)2Na(PO4)2 | Trig. 3m (3 2/m) : P3m1 |
8.AC.40 | Bario-olgite | (Ba,Sr)(Na,Sr,REE)2Na(PO4)2 · | Trig. 3 : P3 |
8.AC.45 | Strontiowhitlockite | Sr9Mg(PO4)6(PO3OH) | Trig. 3m : R3c |
8.AC.45 | Whitlockite | Ca9Mg(PO4)6(PO3OH) | Trig. 3m : R3c |
8.AC.45 | Merrillite | Ca9NaMg(PO4)7 | Trig. 3m : R3m |
8.AC.45 | Tuite | Ca3(PO4)2 | Trig. 3m (3 2/m) : R3m |
8.AC.45 | Ferromerrillite | Ca9NaFe2+(PO4)7 | Trig. 3m : R3c |
8.AC.50 | Chladniite | Na3CaMg11(PO4)9 | Trig. 3 : R3 |
8.AC.50 | Fillowite | Na3CaMn2+11(PO4)9 | Trig. 3 : R3 |
8.AC.50 | Johnsomervilleite | Na3CaFe11(PO4)9 | Trig. |
8.AC.50 | Galileiite | Na3Fe2+Fe2+11(PO4)9 | Trig. 3 : R3 |
8.AC.50 | Stornesite-(Y) | {(Y, Ca)}{Na6◻2}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36 | Trig. 3 : R3 |
8.AC.50 | Xenophyllite | Na4Fe2+7(PO4)6 | Tric. 1 : P1 |
8.AC.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 | Trig. |
8.AC.60 | Kosnarite | KZr2(PO4)3 | Trig. 3m (3 2/m) : R3c |
8.AC.65 | Panethite | (Na,Ca)2(Mg,Fe2+)2(PO4)2 | Mon. 2/m : P21/b |
8.AC.70 | Stanfieldite | Ca4Mg5(PO4)6 | Mon. |
8.AC.75 | Ronneburgite | K2MnV4O12 | Mon. 2/m |
8.AC.80 | Tillmannsite | Ag3Hg[(V,As)O4] | Tet. 4 : I4 |
8.AC.85 | Filatovite | K(Al,Zn)2(As,Si)2O8 | 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.
References for Schäferite
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 Schäferite
mindat.org URL:
https://www.mindat.org/min-7279.html
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Localities for Schäferite
Locality List




All localities listed without proper references should be considered as questionable.
Germany | |
| Blaß, G. & Kruijen, F. (2013): Die Mineralogischen Neuigkeiten aus der Vulkaneifel. Mineralien-Welt 24 (3), 33-41. |
| Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors |
| 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 |
Greece | |
| 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. |
Russia | |
| Pekov, I. V., Zubkova, N. V., Zelenski, M. E., Yapaskurt, V. O., Polekhovsky, Y. S., Fadeeva, O. A., & Pushcharovsky, D. Y. (2013). Yaroshevskite, Cu9O2 (VO4) 4Cl2, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 77(1), 107-116. |
Pavel M. Kartashov analytical data 2012 |
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz District, Rhineland-Palatinate, Germany