Mineralienatlas - Fossilienatlas
Knorringite (Knorringit) |
Collectors Summary
Color | blau grün, grün |
Streak color | weiß |
Hardness (Mohs) | 6 - 7 |
Solubility | ++ HF |
Crystal System | kubisch, Ia3d |
Chemism
Chemical formula |
{Mg3}[Cr3+2](Si3)O12 |
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Chemical composition |
Chrom, Magnesium, Silicium, Sauerstoff |
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Analysis wt% |
SiO2 : 39.92, Al2O3 : 9.74, Cr2O3 : 17.47, Fe2O3 : 1.20, FeO : 6.53, MnO : 0.60, MgO : 16.97, CaO : 8.14 (Ref: American Mineralogist 68) |
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Strunz 9th edition incl. updates |
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9: Silikate (Germanate) |
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Lapis Classification |
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VIII: SILIKATE |
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Classification by Hölzel |
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9: SILICATES |
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Dana 8th edition |
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51: Nesosilicate Minerals |
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IMA status |
Anerkannt von der CNMNC |
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Mineral status |
anerkanntes Mineral |
IMA Classification
IMA Classification |
Garnet supergroup ⇒ Silicate garnets; Garnet group (Z charge 12) |
Optical Properties
blau grün, grün |
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weiß |
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transparent bis durchscheinend |
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RI value α / ω / n |
1.803 |
Ri mean |
1.803 |
2V angle |
Isotropisch |
Crystallography
Crystal Structure 3D
Open larger view |
Physical Properties
6 - 7 |
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960 (ungefähre Angabe abgeleitet aus der Mohshärte) |
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3.756 |
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3.86 ( ρ calc. Mineralienatlas ) |
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Instability |
++ HF |
(Co-)Type locality
(Co-)Type locality |
Preface
Author (Name, Year) |
Nixon & Hornung, 1968 |
References
IMA group assignments
Other languages
German |
Knorringit |
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Spanish |
Knorringita |
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French |
Knorringite |
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English |
Knorringite |
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Russian |
Кноррингит |
CNMNC (IMA)-Number
IMA 1968-010 |
CNMNC symbol
Symbol |
Krr |
Automatic Links to external internet sources (Responsibility is with the operator)
German pages |
DeWikiPedia - search for: Knorringit Google-Bilder-Suche - search for: Knorringit Mineralienatlas.de (Forum) - search for: Knorringit |
English pages |
Mindat - search for: Knorringite Webmineral - search for:Knorringite Handbook-of-Mineralogy - search for: Knorringite RRUFF - Raman, XRD and other mineral data - search for: Knorringite RRUFF - References and PDF downloads - search for: Knorringite American-Mineralogist-Crystal-Structure-Database - search for: Knorringite Strahlen.org - search for: Knorringite |
Russian pages |
Webmineral.ru - search for: Кноррингит |
Mineral Dealer
German pages |
hausen - Mineralgroßhandel - search for: Knorringit Crystal-Treasure.com - search for: Knorringit Bosse - search for: Knorringit Edelsteine Neuburg - Gundolf Fischer - search for: Knorringit |
Locations with GPS information