Edtollite
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Eduard Toll
Formula:
K2NaCu5Fe3+O2(AsO4)4
Colour:
Brown–black to black
Lustre:
Sub-Metallic
Specific Gravity:
4.26 (Calculated)
Crystal System:
Triclinic
Name:
Named in honor of Eduard Gustav Freiherr von Toll (in Russian, Eduard Vasilievich Toll) (March 1858, Reval, Russian Empire (now Estonia) – 1902, East Siberian Sea), geologist and Arctic explorer.
New structure type. Unique combination of elements. Compare melanarsite, pansnerite and achyrophanite.
The Fe(III) analogue of alumoedtollite.
The Fe(III) analogue of alumoedtollite.
Classification of Edtollite
Approved
Approval year:
2016
First published:
2019
8.AC.
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
Physical Properties of Edtollite
Optical Data of Edtollite
Anisotropism:
Distinct
Reflectivity:
| 470nm | R1=8.3% | R2= 8.2% |
| 546nm | R1=7.7% | R2= 7.4% |
| 589nm | R1=7.1% | R2= 6.9% |
| 650nm | R1=6.3% | R2= 6.3% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 8.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grey
Chemical Properties of Edtollite
Formula:
K2NaCu5Fe3+O2(AsO4)4
Crystallography of Edtollite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.1168(6) Å, b = 9.124(1) Å, c = 9.698(1) Å
α = 110.12(1)°, β = 102.45(1)°, γ = 92.85(1)°
α = 110.12(1)°, β = 102.45(1)°, γ = 92.85(1)°
Ratio:
a:b:c = 0.561 : 1 : 1.063
Unit Cell V:
411.32 ų
Z:
1
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.79 Å | (92) |
| 7.63 Å | (41) |
| 5.22 Å | (44) |
| 3.427 Å | (100) |
| 3.148 Å | (64) |
| 2.851 Å | (65) |
| 2.569 Å | (77) |
| 2.551 Å | (40) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
Type Occurrence of Edtollite
General Appearance of Type Material:
Prismatic crystals up to 0.02 mm × 0.1 mm
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 4851/1
Geological Setting of Type Material:
Fumarole
Associated Minerals at Type Locality:
Reference:
Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Ksenofontov, D.A., Pautov, L.A., Sidorov, E.G., Britvin, S.N., Vigasina, M.F., Pushcharovsky, D.Y. (2019) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. X. Edtollite, K2NaCu5Fe3+O2(AsO4)4, and alumoedtollite, K2NaCu5AlO2(AsO4)4. Mineralogical Magazine: 83(4): 485-495.
Synonyms of Edtollite
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. | 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.25 | Schäferite | (NaCa2)Mg2(VO4)3 | Iso. |
| 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 Edtollite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Pautov, L.A., Vigasina, M.F., Sidorov, E.G., Ksenofontov, D.A., Britvin, S.N. and Pushcharovsky, D.Y. (2016) Edtollite, IMA 2016-010. CNMNC Newsletter No. 31, June 2016, page 696. Mineralogical Magazine: 80: 691–697.
Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Ksenofontov, D.A., Pautov, L.A., Sidorov, E.G., Britvin, S.N., Vigasina, M.F., Pushcharovsky, D.Y. (2019) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. X. Edtollite, K2NaCu5Fe3+O2(AsO4)4, and alumoedtollite, K2NaCu5AlO2(AsO4)4. Mineralogical Magazine: 83(4): 485-495.
Internet Links for Edtollite
mindat.org URL:
https://www.mindat.org/min-47796.html
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Localities for Edtollite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Pautov, L.A., Vigasina, M.F., Sidorov, E.G., Ksenofontov, D.A., Britvin, S.N. and Pushcharovsky, D.Y. (2016) Edtollite, IMA 2016-010. CNMNC Newsletter No. 31, June 2016, page 696; Mineralogical Magazine, 80, 691–697. |
