Classification of Hiortdahlite |
| Nickel-Strunz 10th (pending) edition ID: | 9.BE.17
9 : SILICATES (Germanates) B : Sorosilicates E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination |
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| Dana 8th edition ID: | 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 |
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| Hey's CIM Ref.: | 17.1.22
17 : Silicates Containing other Anions 1 : Silicates with fluoride (not containing Al) |
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| mindat.org URL: | http://www.mindat.org/min-1909.html Please feel free to link to this page. |
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Type Occurrence of Hiortdahlite |
| Type Locality: | Lille Arøya (Midtre Arøy; Øvre Arøy; Övre-Arö), Langesundsfjorden, Larvik, Vestfold, Norway |
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| Year of Discovery: | 1889 |
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Physical Properties of Hiortdahlite |
| Lustre: | Vitreous |
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| Colour: | Yellow, yellowish-brown |
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| Hardness (Mohs): | 5 - 5½ |
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Crystallography of Hiortdahlite |
| Crystal System: | Triclinic |
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| Cell Parameters: | a = 10.95Å, b = 10.31Å, c = 7.29Å α = 90.32°, β = 109.03°, γ = 95.08° |
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| Ratio: | a:b:c = 1.062 : 1 : 0.707 |
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| Unit Cell Volume: | V 774.45 ų (Calculated from Unit Cell) |
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Optical Data of Hiortdahlite |
| Type: | Biaxial (+) |
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| RI values: | nα = 1.639 - 1.658 nβ = 1.643 - 1.664 nγ = 1.646 - 1.671 |
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| 2V: | Measured: 80° , Calculated: 80° to 86° |
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| Maximum Birefringence: | δ = 0.007 - 0.013
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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| Dispersion: | r < v strong |
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Chemical Properties of Hiortdahlite |
| Formula: | | (Ca,Na) | | (Zr,Ti)Si | | O | | (O,OH,F) | | |
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| Essential elements: | Ca, O, Si, Zr |
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| All elements listed in formula: | Ca, F, H, Na, O, Si, Ti, Zr |
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| Common Impurities: | OH,Hf,Sn,Al,Y,TR,Fe,Nb,U,Mn,Mg,Sr,K |
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Relationship of Hiortdahlite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | | 9.BE.02 | Wadsleyite | | | 9.BE.05 | Hennomartinite | | | 9.BE.05 | Lawsonite | | | 9.BE.05 | Noelbensonite | | | 9.BE.05 | Itoigawaite | | | 9.BE.07 | Ilvaite | | | 9.BE.07 | Manganilvaite | | | 9.BE.10 | Suolunite | | | 9.BE.12 | Jaffeite | | | 9.BE.15 | Fresnoite | | | 9.BE.17 | Baghdadite | | | 9.BE.17 | Burpalite | | | 9.BE.17 | Cuspidine | | | 9.BE.17 | Janhaugite | | (Na,Ca) | | (Mn,Fe) | | (Ti,Zr,Nb) | | Si | | O | | (OH,F,O) | | |
| | 9.BE.17 | Låvenite | | (Na,Ca) | | (Mn | | ,Fe | | )(Zr,Ti)[(O,OH,F) | | |Si | | O | | ] |
| | 9.BE.17 | Niocalite | | | 9.BE.17 | Normandite | | NaCa(Mn,Fe)(Ti,Nb,Zr)[(O,F) | | |Si | | O | | ] |
| | 9.BE.17 | Wöhlerite | | NaCa | | (Zr,Nb)[(O,OH,F) | | |Si | | O | | ] |
| | 9.BE.17 | Hiortdahlite I | | | 9.BE.17 | IMA2005-005a | | | 9.BE.20 | Mosandrite | | (Ca,Na,Ce) | | (Ti,Zr) | | [F | | |(OH) | | |SiO | | |(Si | | O | | ) | | ] |
| | 9.BE.20 | Nacareniobsite-(Ce) | | Na | | Ca | | (Ce,La,Nd)Nb[F | | |O|(Si | | O | | ) | | ] |
| | 9.BE.20 | Rinkite | | Na(Na,Ca) | | (Ca,Ce) | | Ti[F | | |(O,F) | | |(Si | | O | | ) | | ] |
| | 9.BE.22 | Götzenite | | | 9.BE.22 | Hainite | | | 9.BE.22 | Rosenbuschite | | | 9.BE.22 | Kochite | | (Na,Ca) | | Ca | | (Mn,Ca)ZrTi[(F,O) | | |(Si | | O | | ) | | ] |
| | 9.BE.23 | Dovyrenite | | | 9.BE.25 | Barytolamprophyllite | | (Ba,Na) | | (Na,Ti,Fe | | ) | | Ti | | [O|(OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Ericssonite | | | 9.BE.25 | Lamprophyllite | | (Sr,K,Ba) | | (Na,Ti,Mn | | ,Fe | | ) | | Ti | | [O|(O,OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Orthoericssonite | | | 9.BE.25 | Seidozerite | | | 9.BE.25 | Nabalamprophyllite | | Na | | (Ba,Na) | | Ti | | [O|(OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Grenmarite | | (Zr,Mn) | | (Zr,Ti)(Mn,Na)(Na,Ca) | | (Si | | O | | ) | | (O,F) | | |
| | 9.BE.27 | Murmanite | | | 9.BE.30 | Epistolite | | | 9.BE.32 | Lomonosovite | | | 9.BE.35 | Vuonnemite | | | 9.BE.37 | Sobolevite | | Na | | Ca(NaCaMn)Ti | | (Si | | O | | ) | | (PO | | ) | | O | | F | | |
| | 9.BE.40 | Innelite | | Na | | (Ba,K) | | (Mg,Ca,Fe)Ti | | Si | | O | | (OH,F) | | SO | | |
| | 9.BE.40 | Phosphoinnelite | | Ba | | Na | | Ti | | [(O,F) | | |(PO | | ,SO | | ) | | |Si | | O | | ] |
| | 9.BE.42 | Yoshimuraite | | | 9.BE.45 | Quadruphite | | | 9.BE.47 | Polyphite | | | 9.BE.50 | Bornemanite | | | 9.BE.50 | Shkatulkaite | | Na | | Mn | | Ti | | Nb | | [(OH) | | |F|(Si | | O | | ) | | ] · 12H | | O |
| | 9.BE.50 | Shkatulkalite | | | 9.BE.50 | Bykovaite | | BaNa(Na,Ti) | | [(OH,F) | | |(Ti,Nb) | | Si | | O | | (O,OH) | | ] · 3H | | O |
| | 9.BE.55 | Bafertisite | | Ba(Fe | | ,Mn | | ) | | Ti[O|(O,OH) | | |Si | | O | | ] |
| | 9.BE.55 | Hejtmanite | | Ba(Mn | | ,Fe | | ) | | Ti[O|(OH,F) | | |Si | | O | | ] |
| | 9.BE.55 | Nechelyustovite | | (Ba,Na) | | {(Na,Ti,Mn) | | [(Ti,Nb) | | (OH) | | Si | | O | | ](OH,O,F) | | } · 3H | | O |
| | 9.BE.60 | Delindeite | | (Na,K) | | (Ba,Ca) | | (Ti,Fe,Al) | | Si | | O | | (OH) | | |
| | 9.BE.65 | Bussenite | | | 9.BE.67 | Jinshajiangite | | (Na,Ca)(Ba,K)(Fe,Mn) | | Ti | | Si | | O | | (F,O,OH) | | |
| | 9.BE.67 | Perraultite | | (Na,Ca)(Ba,K)(Mn,Fe) | | (Ti,Nb) | | Si | | O | | (OH,F,O) | | |
| | 9.BE.67 | Surkhobite | | (Ba,K) | | CaNaMn | | Ti | | (Si | | O | | ) | | O | | (F,OH,O) | | |
| | 9.BE.70 | Karnasurtite-(Ce) | | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P) | | O | | (OH) | | ·3H | | O |
| | 9.BE.70 | Perrierite-(Ce) | | (Ce,Ca,Th) | | (Mg,Fe | | ) | | (Ti,Fe | | ) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Strontiochevkinite | | (Sr,La,Ce,Ca) | | Fe | | (Ti,Zr) | | Ti | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Chevkinite-(Ce) | | (Ce,La,Ca,Na,Th) | | (Fe | | ,Mg)(Fe | | ,Ti,Fe | | ) | | (Ti,Fe | | ,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Polyakovite-(Ce) | | (Ce,Ca) | | (Mg,Fe | | )(Cr | | ,Fe | | ) | | (Ti,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Rengeite | | | 9.BE.70 | Matsubaraite | | | 9.BE.70 | Dingdaohengite-(Ce) | | | 9.BE.70 | Maoniupingite-(Ce) | | (REE,Ca) | | (Fe | | ,Ti,Fe | | ,[])(Ti,Fe | | ,Fe | | ,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Perrierite-(La) | | (La,Ce, Ca) | | (Fe,Mn | | ,Mg)(Ti,Fe) | | [O | | |Si | | O | | ] | | |
| | 9.BE.72 | Fersmanite | | | 9.BE.75 | Belkovite | | | 9.BE.77 | Nasonite | | | 9.BE.80 | Kentrolite | | | 9.BE.80 | Melanotekite | | | 9.BE.82 | Tilleyite | | | 9.BE.85 | Killalaite | | | 9.BE.87 | Stavelotite-(La) | | (La,Nd,Ca) | | Mn | | Cu(Mn | | ,Fe | | ,Mn | | ) | | [O | | |Si | | O | | ] | | |
| | 9.BE.90 | Biraite-(Ce) | |
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| Related Minerals - Hey's Index Grouping: | | 17.1.1 | Hectorite | | | 17.1.3 | Agrellite | | | 17.1.4 | Apophyllite-(NaF) | | | 17.1.5 | Apophyllite-(KF) | | | 17.1.6 | Apophyllite-(KOH) | | | 17.1.7 | Hsianghualite | | | 17.1.8 | Leucophanite | | (Ca,Na) | | (Be,Al)[Si | | O | | (F,OH)] |
| | 17.1.9 | Norbergite | | | 17.1.10 | Chondrodite | | | 17.1.11 | Humite | | | 17.1.12 | Clinohumite | | | 17.1.13 | Canasite | | | 17.1.14 | Charoite | | (K,Na) | | (Ca,Ba,Sr) | | (Si | | O | | ) | | (Si | | O | | )(OH,F)·H | | O |
| | 17.1.15 | Cuspidine | | | 17.1.16 | Bultfonteinite | | | 17.1.17 | Zeophyllite | | | 17.1.18 | Rowlandite-(Y) | | | 17.1.19 | Yuksporite | | (K,Ba)NaCa | | (Si,Ti) | | O | | (F,OH)·H | | O |
| | 17.1.20 | Yftisite-(Y) | | (Y,Dy,Er) | | (Ti,Sn)O(SiO | | ) | | (F,OH) | | |
| | 17.1.21 | Mosandrite | | (Ca,Na,Ce) | | (Ti,Zr) | | [F | | |(OH) | | |SiO | | |(Si | | O | | ) | | ] |
| | 17.1.23 | Burpalite | | | 17.1.24 | Seidozerite | | | 17.1.25 | Thorosteenstrupine | | | 17.1.26 | Zircophyllite | | (K,Na) | | (Mn,Fe | | ) | | (Zr,Ti) | | Si | | O | | (O,OH,F) | | |
| | 17.1.27 | Jinshajiangite | | (Na,Ca)(Ba,K)(Fe,Mn) | | Ti | | Si | | O | | (F,O,OH) | | |
| | 17.1.28 | Rosenbuschite | | | 17.1.29 | Narsarsukite | | | 17.1.30 | Sonolite | |
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Other Names for Hiortdahlite |
| German names: | |
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| Russian names: | |
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| Spanish names: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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Internet Links for Hiortdahlite |
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| Mineral Dealers: | Fine Minerals from Dan Weinrich MineralsMineral Classics - Worldwide Collector Quality Minerals and GemsHigh-end worldwide specimens & outstanding customer serviceRare and Unusual minerals at Mineralogical Research CompanyFind Hiortdahlite on www.crystalclassics.co.ukLapis Mineral Magazinrare and unusual minerals mainly crystallizedThe Arkenstone - Fine MineralsWendel Minerals - Auktion & ShopSearch for Hiortdahlite at Thames Valley Mineralse-Rocks - Mineral Auctions and SalesBuy Fine Minerals from mineralsweb.com |
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Localities for Hiortdahlite |
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