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Tamponilapa, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascari
Regional Level Types
TamponilapaPegmatite
Sahatany ValleyValley
IbityCommune
Antsirabe IIDistrict
VakinankaratraRegion
MadagascarCountry

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Key
Latitude & Longitude (WGS84):
20° South , 46° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~9km
Locality type:
Other/historical names associated with this locality:
Itamponilapa; Antamponilapa; Tampo'ny lapa
Other Languages:
Malagasy:
Tamponilapa, Lohasahan'i Sahatany, Kaominin' Alatsinainy Ibity, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara


An LCT pegmatite worked for gemmy tourmaline located 600m east of Tsarafara S.
The locality may be identical to one of the localities referred to in earlier literature as Ilapa, the name of the hill.

Regions containing this locality

Sahatany Pegmatite Field (Mt Ibity area), MadagascarPegmatite Field
Somali Plate (Somalia Plate)Tectonic Plate
Antananarivo Province, MadagascarProvince (Abolished)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Buřival, Zbyněk a Milan Novák (2014) Hydrothermal replacement of garnet by tourmaline - an example from LCT pegmatites in Sahatany Valley, Madagascar. In Central European Mineralogical Conference, Skalský Dvůr, 22.-26. 4. 2014. p. 24-25.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Buřival, Z. & Novàk, M. (2015): Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.
Hambergite
Formula: Be2(BO3)(OH)
Reference: Pezzotta, F. (2011): Neufunde in Madagascar-Edle Liddicoatite in Spitzenqualität. ExtraLapis 41, 66-71
Quartz
Formula: SiO2
Reference: Buřival, Zbyněk a Milan Novák (2014) Hydrothermal replacement of garnet by tourmaline - an example from LCT pegmatites in Sahatany Valley, Madagascar. In Central European Mineralogical Conference, Skalský Dvůr, 22.-26. 4. 2014. p. 24-25.
Rossmanite
Formula: ☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Buřival, Z. & Novàk, M. (2015): Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Buřival, Z. & Novàk, M. (2015): Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Buřival, Zbyněk a Milan Novák (2014) Hydrothermal replacement of garnet by tourmaline - an example from LCT pegmatites in Sahatany Valley, Madagascar. In Central European Mineralogical Conference, Skalský Dvůr, 22.-26. 4. 2014. p. 24-25.
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Description: Of the tourmalines studied by Buřival & Novàk (2015) most compositions represent schorl – elbaite – rossmanite solid solution, with rare schorl-uvite trend.
Reference: Pezzotta, F. (2011): Neufunde in Madagascar-Edle Liddicoatite in Spitzenqualität. ExtraLapis 41, 66-71; Buřival, Z. & Novàk, M. (2015): Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 6 - Borates
Hambergite6.AB.05Be2(BO3)(OH)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Rossmanite9.CK.05☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Unclassified Minerals, Rocks, etc.
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 25 - ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
Monoborates
Hambergite25.1.1.1Be2(BO3)(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Rossmanite-☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H HambergiteBe2(BO3)(OH)
H Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be HambergiteBe2(BO3)(OH)
BBoron
B HambergiteBe2(BO3)(OH)
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O HambergiteBe2(BO3)(OH)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O SpessartineMn32+Al2(SiO4)3
O QuartzSiO2
O AlbiteNa(AlSi3O8)
O Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al SpessartineMn32+Al2(SiO4)3
Al AlbiteNa(AlSi3O8)
Al Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si SpessartineMn32+Al2(SiO4)3
Si QuartzSiO2
Si AlbiteNa(AlSi3O8)
Si Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Pezzotta, F. (2011) Neufunde in Madagascar - Edle Liddicoatite in Spitzenqualität. ExtraLapis, 41, 66-71.
Chiappero, P.-J. (2010) Tucson 2010. Le Règne Minéral, 93, 75-80 (pp. 78-79).
Niedermayr, G., Lyckberg, P., and Jahn, S. (2011) Mineralientage Munchen 2010. Mineralien-Welt, 22(1), 10-31 (p. 22).
Buřival, Zbyněk and Novák, Milan (2014) Hydrothermal replacement of garnet by tourmaline - an example from LCT pegmatites in Sahatany Valley, Madagascar. Central European Mineralogical Conference, Skalský Dvůr, 22.-26. 4. 2014. pp. 24-25.
Buřival, Zbyněk and Novák, Milan (2015) Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.


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