Mineralienatlas - Fossilienatlas
Heftetjernite |
Collectors Summary
Color | tiefbraun, z.T. grünlichbraun |
Streak color | dunkelbraun mit rötlichem Ton |
Lustre | Diamantglanz |
Hardness (Mohs) | 4.5 |
Cleavages | vollkommen (010) |
Fracture | unregelmäßig |
Crystal System | monoklin, P2/c |
Chemism
Chemical formula |
ScTaO4 |
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Chemical composition |
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Analysis wt% |
Ta2O5 : 53.58, Nb2O5 : 14.25, TiO2 : 1.61, SnO2 : 6.93, Sc2O3 : 15.59, FeO : 2.07, MnO : 3.02 (Ref: European Journal of Mineralogy 2010) |
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Strunz 9th edition incl. updates |
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4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate) |
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Lapis Classification |
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IV: OXIDE |
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Classification by Hölzel |
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4: OXIDES |
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IMA status |
anerkannt 2007 |
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Mineral status |
anerkanntes Mineral |
IMA Classification
IMA Classification |
Columbite supergroup ⇒ Wolframite group |
Optical Properties
Crystallography
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
4.5 |
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280 (ungefähre Angabe abgeleitet aus der Mohshärte) |
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6.44 ber. |
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6.905 ( ρ calc. Mineralienatlas ) |
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vollkommen (010) |
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unregelmäßig |
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spröde |
(Co-)Type locality
(Co-)Type locality |
Norwegen/Telemark, Provinz/Drangedal, Kommune/Tørdal/Heftetjern-Pegmatit |
Paragenesis of type material |
Fluorit, Muskovit, Biotit, Kristiansenit, Milarit, Zirkon, Monazit |
Preface
Name from |
nach der Typlokalität |
Author (Name, Year) |
Uwe Kolitsch et al., 2010 |
References
IMA group assignments
Refresh list | Actuality: 28. Mar 2024 - 14:31:50 |
Other languages
German |
Heftetjernit |
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Spanish |
Heftetjernita |
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English |
Heftetjernite |
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Russian |
Хефтетьернит |
CNMNC (IMA)-Number
IMA 2006-056 |
CNMNC symbol
Symbol |
Hef |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | 1AX4BeZzOEqY-2krxR1UQg |
GUID (Global unique identifier) | 05F805D4-73E6-4A38-98FB-692BC51D5442 |
Database ID | 4607 |