Hiortdahlite
A valid IMA mineral species
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About Hiortdahlite
Thorstein H. Hiortdahl
Formula:
Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Formula revised by IMA , Sept. 2020 (Proposal 20-D)
Colour:
Yellow, yellowish-brown, green
Lustre:
Vitreous
Hardness:
5 - 5½
Specific Gravity:
3.25 - 3.31
Crystal System:
Triclinic
Member of:
Name:
Named by W.C. Brögger in 1890 in honor of Thorstein Hallager Hiortdahl (04 May 1839, Bergen, Norway - 29 October 1925, Oslo, Norway), chemist, mineralogist, crystallographer, and politician.
A sorosilicate mineral belonging to the Wöhlerite Group with crystal structure containing two topologically independent ochtahedral walls.
Originally reported by Brøgger (1888, 1890) from "Mittel-Arø", Langesundsfjorden, Norway. He referred to a 10 cm wide nepheline-syenite pegmatite dike at Langodden, Arøyskjærene, Langesundsfjorden.
Merlino & Perchiazzi (1985) determined the crystal structure of hiortdahlite from the Langesundsfjorden area, and designated it as hiortdahlite I, since the structure was slightly different from hiortdahlite from Kipawa River, Canada. The later was designated as hiortdahlite II. Hiorthdahlite II was not never formally submitted to IMA. Newer investigations is needed to establish if hiorthdahlite II is a polytype or a distinct species (Dal Bo et al. 2022).
New chemical data and crystal refinement on a sample from the type locality was presented by Dal Bo et al. (2022) and a new end-member formula with one cationic site characterised by a valancy-imposed double-site occupancy ((Ca2+0.5Zr4+0.5Σ3+)) on the X7-site was approved by IMA-CNMNC in 2020.
Originally reported by Brøgger (1888, 1890) from "Mittel-Arø", Langesundsfjorden, Norway. He referred to a 10 cm wide nepheline-syenite pegmatite dike at Langodden, Arøyskjærene, Langesundsfjorden.
Merlino & Perchiazzi (1985) determined the crystal structure of hiortdahlite from the Langesundsfjorden area, and designated it as hiortdahlite I, since the structure was slightly different from hiortdahlite from Kipawa River, Canada. The later was designated as hiortdahlite II. Hiorthdahlite II was not never formally submitted to IMA. Newer investigations is needed to establish if hiorthdahlite II is a polytype or a distinct species (Dal Bo et al. 2022).
New chemical data and crystal refinement on a sample from the type locality was presented by Dal Bo et al. (2022) and a new end-member formula with one cationic site characterised by a valancy-imposed double-site occupancy ((Ca2+0.5Zr4+0.5Σ3+)) on the X7-site was approved by IMA-CNMNC in 2020.
Unique Identifiers
Mindat ID:
1909
Long-form identifier:
mindat:1:1:1909:1
GUID
(UUID V4):
(UUID V4):
375dd570-8084-480e-9eeb-dc5c8ba19fa5
IMA Classification of Hiortdahlite
Approved
IMA status notes:
Renamed by the IMA
IMA Formula:
Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
First published:
1890
Approval history:
Renamed by IMA: 1985
Approved special procedure IMA 1987
Formula revised by IMA 2020 (Proposal 20-D) as Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3.
Approved special procedure IMA 1987
Formula revised by IMA 2020 (Proposal 20-D) as Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3.
Classification of Hiortdahlite
9.BE.17
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
56.2.4.7
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
17.1.22
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Hio | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Hiortdahlite
Vitreous
Transparency:
Translucent
Comment:
Vitreous on crystal faces, greasy on fractures
Colour:
Yellow, yellowish-brown, green
Hardness:
5 - 5½ on Mohs scale
Tenacity:
Very brittle
Cleavage:
Distinct/Good
Distinct on {110) and {110)
Distinct on {110) and {110)
Density:
3.25 - 3.31 g/cm3 (Measured) 3.22(2) g/cm3 (Calculated)
Optical Data of Hiortdahlite
Type:
Biaxial (+)
RI values:
nα = 1.639 - 1.658 nβ = 1.643 - 1.664 nγ = 1.646 - 1.671
2V:
Measured: 80° , Calculated: 80° to 86°
Max Birefringence:
δ = 0.007 - 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong
Comments:
X = nearly colorless, Y = bright yellow, Z = wine-yellow
Chemistry of Hiortdahlite
Mindat Formula:
Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Formula revised by IMA , Sept. 2020 (Proposal 20-D)
Formula revised by IMA , Sept. 2020 (Proposal 20-D)
Common Impurities:
OH,Hf,Sn,Al,Y,TR,Fe,Nb,U,Mn,Mg,Sr,K
Crystallography of Hiortdahlite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 10.9517 Å, b = 10.31 Å, c = 7.29 Å
α = 90.32°, β = 109.03°, γ = 95.08°
α = 90.32°, β = 109.03°, γ = 95.08°
Ratio:
a:b:c = 1.062 : 1 : 0.707
Unit Cell V:
774.57 ų (Calculated from Unit Cell)
Z:
4
Twinning:
Polysynthetic twinning on {010} and {100}
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0019216 | Hiortdahlite | Bellezza M, Merlino S, Perchiazzi N (2012) Distinct domains in "guarinite" from Monte Somma, Italy: Crystal structures and crystal chemistry The Canadian Mineralogist 50 531-548 | 2012 | Monte Somma syenite, Italy | 0 | 293 | |
| 0019218 | Hiortdahlite | Bellezza M, Merlino S, Perchiazzi N (2012) Distinct domains in "guarinite" from Monte Somma, Italy: Crystal structures and crystal chemistry The Canadian Mineralogist 50 531-548 | 2012 | Monte Somma syenite, Italy | 0 | 293 | |
| 0019478 | Hiortdahlite | Biagioni C, Merlino S, Parodi G C, Perchiazzi N (2012) Crystal chemistry of minerals of the wohlerite group from the Los Archipelago, Guinea The Canadian Mineralogist 50 593-609 | 2012 | the nepheline syenites of the Los Archipelago, Guinea | 0 | 293 | |
| 0014615 | Hiortdahlite | Merlino S, Perchiazzi N (1987) The crystal structure of hiortdahlite II Mineralogy and Petrology 37 25-35 | 1987 | Kipawa River, Canada | 0 | 293 | |
| 0017878 | Hiortdahlite | Merlino S, Perchiazzi N (2010) The crystal structure of hiortdahlite II Mineralogy and Petrology 37 25-35 | 2010 | Kipawa river, Canada | 0 | 293 | |
| 0015704 | Hiortdahlite | Merlino S, Perchiazzi N (1985) The crystal structure of hiortdahlite I Tschermaks Mineralogische und Petrographische Mitteilungen 34 297-310 | 1985 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.28 Å | (45) |
| 3.00 Å | (90) |
| 2.87 Å | (100) |
| 2.03 Å | (25) |
| 1.84 Å | (30) |
| 1.80 Å | (25) |
| 1.70 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Synonyms of Hiortdahlite
Other Language Names for Hiortdahlite
Relationship of Hiortdahlite to other Species
Member of:
Other Members of this group:
| Baghdadite | Ca6Zr2(Si2O7)2O4 | Mon. 2/m : P21/b |
| Burpalite | Na2CaZr(Si2O7)F2 | Mon. 2/m : P21/b |
| Cuspidine | Ca8(Si2O7)2F4 | Mon. 2/m : P21/b |
| Janhaugite | (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2 | Mon. 2/m : P21/m |
| Låvenite | Na2Ca2Mn2Zr2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Madeiraite | Na2Ca2Fe2Zr2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Moxuanxueite | NaCa6Zr(Si2O7)2OF3 | Tric. 1 : P1 |
| Niocalite | (Ca,Nb)4(Si2O7)(O,OH,F)2 | Mon. m |
| Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF | Mon. 2/m : P21/b |
| Pilanesbergite | Na2Ca2Fe2Ti2(Si2O7)2O2F2 | Mon. 2/m : P21/b |
| Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F | Mon. 2 : P21 |
Common Associates
Associated Minerals Based on Photo Data:
| 4 photos of Hiortdahlite associated with Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F |
| 2 photos of Hiortdahlite associated with Sanidine | K(AlSi3O8) |
| 2 photos of Hiortdahlite associated with Thorianite | ThO2 |
| 1 photo of Hiortdahlite associated with Fluorapatite | Ca5(PO4)3F |
| 1 photo of Hiortdahlite associated with Aegirine | NaFe3+Si2O6 |
Related Minerals - Strunz-mindat Grouping
| 9.BE. | Paralomonosovite | Na6◻4Ti4(Si2O7)2[PO3OH][PO2(OH)2]O2(OF) |
| 9.BE. | Cámaraite | Ba3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7 |
| 9.BE. | Christofschäferite-(Ce) | Ce3CaMnTiFe(3+)Ti2(Si2O7)2O8 |
| 9.BE. | Bobshannonite | Na2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2 |
| 9.BE. | Calciomurmanite | (Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4 |
| 9.BE. | Batievaite-(Y) | Y2Ca2Ti(Si2O7)2(OH)2(H2O)4 |
| 9.BE. | Delhuyarite-(Ce) | Ce4Mg(Fe3+,W)3◻(Si2O7)2O6(OH)2 |
| 9.BE.X | Asimowite | Fe2+4O(Si2O7) |
| 9.BE. | Moxuanxueite | NaCa6Zr(Si2O7)2OF3 |
| 9.BE. | Alexkuznetsovite-(Ce) | Ce2Mn(CO3)(Si2O7) |
| 9.BE. | Biraite-(La) | La2Fe2+(CO3)(Si2O7) |
| 9.BE. | Zinkgruvanite | Ba4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2 |
| 9.BE. | Madeiraite | Na2Ca2Fe2Zr2(Si2O7)2O2F2 |
| 9.BE. | Bortolanite | Ca2(Ca1.5Zr0.5)Na(NaCa)Ti(Si2O7)2(OF)F2 |
| 9.BE. | Nacareniobsite-(Y) | Na3Ca3YNb(Si2O7)2OF3 |
| 9.BE. | Pilanesbergite | Na2Ca2Fe2Ti2(Si2O7)2O2F2 |
| 9.BE. | Alfredcasparite | Sr2TiO(Si2O7) |
| 9.BE.02 | Wadsleyite | Mg4O(Si2O7) |
| 9.BE.05 | Hennomartinite | SrMn3+2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Lawsonite | CaAl2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Noelbensonite | BaMn3+2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Itoigawaite | SrAl2(Si2O7)(OH)2 · H2O |
| 9.BE.05 | Cortesognoite | CaV2(Si2O7)(OH)2 · H2O |
| 9.BE.07 | Ilvaite | CaFe3+Fe2+2(Si2O7)O(OH) |
| 9.BE.07 | Manganilvaite | CaFe2+Fe3+Mn2+(Si2O7)O(OH) |
| 9.BE.07 | Amamoorite | CaMn2+2Mn3+(Si2O7)O(OH) |
| 9.BE.10 | Suolunite | Ca2(H2Si2O7) · H2O |
| 9.BE.12 | Jaffeite | Ca6(Si2O7)(OH)6 |
| 9.BE.15 | Fresnoite | Ba2Ti(Si2O7)O |
| 9.BE.17 | Baghdadite | Ca6Zr2(Si2O7)2O4 |
| 9.BE.17 | Burpalite | Na2CaZr(Si2O7)F2 |
| 9.BE.17 | Cuspidine | Ca8(Si2O7)2F4 |
| 9.BE.17 | Janhaugite | (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2 |
| 9.BE.17 | Låvenite | Na2Ca2Mn2Zr2(Si2O7)2O2F2 |
| 9.BE.17 | Niocalite | (Ca,Nb)4(Si2O7)(O,OH,F)2 |
| 9.BE.17 | Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF |
| 9.BE.17 | Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F |
| 9.BE.20 | Mosandrite-(Ce) | (Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2 |
| 9.BE.20 | Nacareniobsite-(Ce) | Na3Ca3(Ce,REE)Nb(Si2O7)2OF3 |
| 9.BE.20 | Roumaite | (Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3 |
| 9.BE.20 | Rinkite-(Y) | Na2Ca4YTi(Si2O7)2OF3 |
| 9.BE.22 | Götzenite | NaCa6Ti(Si2O7)2OF3 |
| 9.BE.22 | Hainite-(Y) | Na2Ca4(Y,REE)Ti(Si2O7)2OF3 |
| 9.BE.22 | Rosenbuschite | Na6Ca6Zr3Ti(Si2O7)4O2F6 |
| 9.BE.22 | Kochite | Na3Ca2MnZrTi(Si2O7)2OF3 |
| 9.BE.22 | Fogoite-(Y) | Na3Ca2Y2Ti(Si2O7)2OF3 |
| 9.BE.23 | Dovyrenite | Ca6Zr(Si2O7)2(OH)4 |
| 9.BE.25 | Barytolamprophyllite | (Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F) |
| 9.BE.25 | Ericssonite | BaMn2+2Fe3+(Si2O7)O(OH) |
| 9.BE.25 | Lamprophyllite | (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2 |
| 9.BE.25 | Ericssonite-2O | BaMn2+2Fe3+(Si2O7)O(OH) |
| 9.BE.25 | Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| 9.BE.25 | Nabalamprophyllite | (BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2 |
| 9.BE.25 | Grenmarite | Na4MnZr3(Si2O7)2O2F2 |
| 9.BE.25 | Schüllerite | Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4 |
| 9.BE.25 | Kazanskyite | BaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4 |
| 9.BE.25 | Lileyite | Ba2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2 |
| 9.BE.25 | Emmerichite | Ba2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2 |
| 9.BE.25 | Saamite | Ba◻Na3Ti2Nb(Si2O7)2O2(OH)F(H2O)2 |
| 9.BE.25 | Fluorlamprophyllite | Na3(SrNa)Ti3(Si2O7)2O2F2 |
| 9.BE.25 | Fluorbarytolamprophyllite | (Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2] |
| 9.BE.27 | Murmanite | Na2Ti2(Si2O7)O2 · 2H2O |
| 9.BE.27 | Vigrishinite | NaZnTi4(Si2O7)2O3(OH)(H2O)4 |
| 9.BE.27 | Kolskyite | CaNa2Ti4(Si2O7)2O4(H2O)7 |
| 9.BE.27 | Selivanovaite | NaFe3+Ti4(Si2O7)2O4(H2O)4 |
| 9.BE.30 | Epistolite | (Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4 |
| 9.BE.32 | Lomonosovite | Na5Ti2(Si2O7)(PO4)O2 |
| 9.BE.35 | Vuonnemite | Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH) |
| 9.BE.37 | Sobolevite | Na13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3 |
| 9.BE.40 | Innelite | Ba4Ti2Na(NaMn2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)] |
| 9.BE.40 | Phosphoinnelite | Na3Ba4Ti3(Si2O7)2(PO4,SO4)2O2F |
| 9.BE.42 | Yoshimuraite | Ba2Mn2Ti(Si2O7)(PO4)O(OH) |
| 9.BE.45 | Quadruphite | Na6Na2(CaNa)2Na2Ti2Na2Ti2(Si2O7)2(PO4)4O4F2 |
| 9.BE.47 | Polyphite | Na5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2 |
| 9.BE.50 | Bornemanite | Na6BaTi2Nb(Si2O7)2(PO4)O2(OH)F |
| 9.BE.50 | Shkatulkalite | Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3 |
| 9.BE.55 | Bafertisite | Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2 |
| 9.BE.55 | Hejtmanite | Ba2Mn2+4Ti2(Si2O7)2O2(OH)2F2 |
| 9.BE.55 | Bykovaite | (Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2O |
| 9.BE.55 | Nechelyustovite | (Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2O |
| 9.BE.60 | Delindeite | (Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O |
| 9.BE.62 | Orthochevkinite | (Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22 |
| 9.BE.62 va | Strontium Perrierite | (Ce,Sr,La,Ca)4Fe2+(Ti,Zr,Fe)2Ti2(Si2O7)2O8 |
| 9.BE.62 | Chevkinite-(Nd) | (Nd,REE)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8 ? |
| 9.BE.62 | Perrierite-(Nd) | Nd4MgFe3+2Ti2(Si2O7)2O8 ? |
| 9.BE.65 | Bussenite | Na2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3F |
| 9.BE.67 | Jinshajiangite | BaNaFe2+4Ti2(Si2O7)2O2(OH)2F |
| 9.BE.67 | Perraultite | BaNaMn2+4Ti2(Si2O7)2O2(OH)2F |
| 9.BE.70 | Karnasurtite-(Ce) | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2O |
| 9.BE.70 | Perrierite-(Ce) | Ce4MgFe3+2Ti2(Si2O7)2O8 |
| 9.BE.70 | Strontiochevkinite | (Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8 |
| 9.BE.70 | Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| 9.BE.70 | Polyakovite-(Ce) | (Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8 |
| 9.BE.70 | Rengeite | Sr4ZrTi4(Si2O7)2O8 |
| 9.BE.70 | Matsubaraite | Sr4Ti5(Si2O7)2O8 |
| 9.BE.70 | Dingdaohengite-(Ce) | (Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe2+)2Ti2(Si2O7)2O8 |
| 9.BE.70 | Maoniupingite-(Ce) | (Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8 |
| 9.BE.70 | Perrierite-(La) | (La,Ce,Ca)4(Fe2+,Mn)(Ti,Fe3+,Al)4[(Si2O7)O4]2 |
| 9.BE.70 | UM2008-53-SiO:SrTiZr | Sr4ZrTi4(Si2O7)2O8 |
| 9.BE.70 | Hezuolinite | (Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8 |
| 9.BE.72 | Fersmanite | Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 |
| 9.BE.75 | Belkovite | Ba3(Nb,Ti)6(Si2O7)2O12 |
| 9.BE.77 | Nasonite | Pb6Ca4(Si2O7)3Cl2 |
| 9.BE.80 | Kentrolite | Pb2Mn3+2(Si2O7)O2 |
| 9.BE.80 | Melanotekite | Pb2Fe3+2(Si2O7)O2 |
| 9.BE.82 | Tilleyite | Ca5(Si2O7)(CO3)2 |
| 9.BE.82 | Alexkuznetsovite-(La) | La2Mn(CO3)(Si2O7) |
| 9.BE.85 | Killalaite | Ca6.4(H0.6Si2O7)2(OH)2 |
| 9.BE.87 | Stavelotite-(La) | (La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30 |
| 9.BE.90 | Biraite-(Ce) | Ce2Fe2+(Si2O7)(CO3) |
| 9.BE.90 | Magnesiorowlandite-(Y) | Y4(Mg,Fe)(Si2O7)2F2 |
| 9.BE.92 | Cervandonite-(Ce) | (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH) |
| 9.BE.92 | Chirvinskyite | (Na,Ca)13(Fe,Mn,◻)2(Ti,Zr)5(Si2O7)4(OH,O)12 · 2H2O |
| 9.BE.95 | Batisivite | BaV3+8Ti6(Si2O7)O22 |
| 9.BE.95 | Rusinovite | Ca10(Si2O7)3Cl2 |
| 9.BE.97 | Schlüterite-(Y) | (Y,REE)2AlSi2O7(OH)2F |
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 Hiortdahlite
mindat.org URL:
https://www.mindat.org/min-1909.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Hiortdahlite
Reference List:
Aarden, H. M., Gittins, J. (1974) Hiortdahlite from Kipawa River, Villedieu Township Temiscaming County, Québec, Canada. The Canadian Mineralogist, 12 (4) 241-247
Merlino, S., Perchiazzi, N. (1985) The crystal structure of hiortdahlite I. TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 34 (3). 297-310 doi:10.1007/bf01082969
Biagioni, C., Merlino, S., Parodi, G. C., Perchiazzi, N. (2012) Crystal chemistry of minerals of the wöhlerite group from the Los Archipelago, Guinea. The Canadian Mineralogist, 50 (3) 593-609 doi:10.3749/canmin.50.3.593
Localities for Hiortdahlite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
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San Vito Quarry, San Vito, Ercolano, Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy