Mineralienatlas - Fossilienatlas
Grandidierite |
Pictures (5 Images total)
Views (File: ): 2621
Grandidierite Grandidierite specimen, from Vohibola phlogopite deposit, Behara, Amboasary Sud, Anosy, Madagascar; Dimensions: 48 mm x 36 mm x 27 mm Copyright: pegmatite; Contribution: pegmatite Location: Madagaskar/Anosy, Region/Amboasary, Distrikt Mineral: Grandidierite Image: 1570217636 Rating: 10 (votes: 1) License: Usage for Mineralienatlas project only |
Grandidierite |
Grandidierite specimen, from Vohibola phlogopite deposit, Behara, Amboasary Sud, Anosy, Madagascar; Dimensions: 48 mm x 36 mm x 27 mm |
Copyright: | pegmatite |
Contribution: pegmatite 2019-10-04 |
Locality: Amboasary, Distrikt / Anosy, Region / Madagaskar |
Views (File: ): 8540
Grandidierit Fundort: Cap Andrahomana, Ranopiso Dept., Anosy (Fort Dauphin) Region, Tulear (Toliara) Provinz, Madagaskar; Größe: 2,5 x 2 cm Copyright: Rob Lavinsky; Contribution: Collector Location: Madagaskar/Anosy, Region/Taolanaro, Distrikt/Ranopiso/Cap Andrahomana Mineral: Grandidierite Image: 1215316799 Rating: 8 (votes: 2) License: Usage for Mineralienatlas project only |
Grandidierit |
Fundort: Cap Andrahomana, Ranopiso Dept., Anosy (Fort Dauphin) Region, Tulear (Toliara) Provinz, Madagaskar; Größe: 2,5 x 2 cm |
Copyright: | Rob Lavinsky |
Contribution: Collector 2008-07-06 |
Locality: Cap Andrahomana / Ranopiso / Taolanaro, Distrikt / Anosy, Region / Madagaskar |
Views (File: ): 7025
Grandidierit Größe: 4 x 6 x 2.5 cm; Fundort: Cap Andrahomana, Fort. Dauphin Area, Toliara Province, Madagaskar Copyright: Kiyoshi Kiikuni; Contribution: Mineralienatlas Location: Madagaskar/Anosy, Region/Taolanaro, Distrikt/Ranopiso/Cap Andrahomana Mineral: Grandidierite Image: 1109176216 License: Usage for Mineralienatlas project only |
Grandidierit |
Größe: 4 x 6 x 2.5 cm; Fundort: Cap Andrahomana, Fort. Dauphin Area, Toliara Province, Madagaskar |
Copyright: | Kiyoshi Kiikuni |
Contribution: Mineralienatlas 2005-02-23 |
Locality: Cap Andrahomana / Ranopiso / Taolanaro, Distrikt / Anosy, Region / Madagaskar |
Views (File: ): 5484
Grandidierit Grandidierit; Kap Andrahomana,Madagaskar; BB: 5 cm Copyright: Rockhounder; Contribution: Rockhounder Collection: Rockhounder Location: Madagaskar/Anosy, Region/Taolanaro, Distrikt/Ranopiso/Cap Andrahomana Mineral: Grandidierite Image: 1479204006 License: Usage for Mineralienatlas project only |
Grandidierit |
Grandidierit; Kap Andrahomana,Madagaskar; BB: 5 cm |
Collection: | Rockhounder |
Copyright: | Rockhounder |
Contribution: Rockhounder 2016-11-15 |
Locality: Cap Andrahomana / Ranopiso / Taolanaro, Distrikt / Anosy, Region / Madagaskar |
Views (File: ): 4491
Grandidierit Cap Andrahomana, Ranopiso Dept., Anosy (Fort Dauphin) Region, Tulear (Toliara) Provinz, Madagaskar; Größe: 4x3x4,5cm; Gewicht: 98 ct Copyright: smaragd123; Contribution: smaragd123 Collection: smaragd123 Location: Madagaskar/Anosy, Region/Taolanaro, Distrikt/Ranopiso/Cap Andrahomana Mineral: Grandidierite Image: 1506263541 License: Usage for Mineralienatlas project only |
Grandidierit |
Cap Andrahomana, Ranopiso Dept., Anosy (Fort Dauphin) Region, Tulear (Toliara) Provinz, Madagaskar; Größe: 4x3x4,5cm; Gewicht: 98 ct |
Collection: | smaragd123 |
Copyright: | smaragd123 |
Contribution: smaragd123 2017-09-24 |
Locality: Cap Andrahomana / Ranopiso / Taolanaro, Distrikt / Anosy, Region / Madagaskar |
Collectors Summary
Color | bläulichgrün |
Streak color | weiß |
Hardness (Mohs) | 7.5 |
Solubility | - Säuren |
Crystal System | orthorhombisch, Pbnm |
Chemism
Chemical formula |
(Mg,Fe2+)Al3(BO4)(SiO4)O |
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Chemical composition |
Aluminium, Eisen, Magnesium, Silicium, Bor, Sauerstoff |
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Analysis wt% |
SiO2 : 20.39, Al2O3 : 52.12, Fe2O3 : 0.80, FeO : 2.87, MgO : 12.04, B2O3 : 11.57 (Ref: Mineralogical Magazine 65) |
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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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54: Nesosilicates Nesosilicate Borosilicates and Some Beryllosilicates |
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IMA status |
Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt |
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Mineral status |
anerkanntes Mineral |
Optical Properties
Crystallography
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
7.5 |
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1650 (ungefähre Angabe abgeleitet aus der Mohshärte) |
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2.976 |
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3.007 ( ρ calc. Mineralienatlas ) |
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Instability |
- Säuren |
(Co-)Type locality
(Co-)Type locality |
Madagaskar/Anosy, Region/Taolanaro, Distrikt/Ranopiso/Cap Andrahomana |
Preface
Author (Name, Year) |
Lacroix, 1902 |
Other languages
German |
Grandidierit |
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Spanish |
Grandidierita |
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French |
Grandidierite |
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English |
Grandidierite |
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Russian |
Грандидьерит |
CNMNC symbol
Symbol |
Gdd |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | 4xOlo7E_B0Genu95WJyTzw |
GUID (Global unique identifier) | A3A513E3-3FB1-4107-9E9E-EF79589C93CF |
Database ID | 1439 |