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Elbaite from
Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra, Amoron'i Mania, Madagascar

Locality type:Pegmatite
Classification
Species:Elbaite
Formula:Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:See comments under tourmaline entry at Antandrokomby locality page.
Ranorosoa (1986, 1989) analyzes pink,green and brownish colored tourmaline found in the contactzone and she find these to be elbaite, one an elbaite with 2,44wt% MnO.
The brown colored gave this formula Na0,52Ca0,38)0,90(Li1,45Mn0,34Fe0,08Al1,77)3,64Al6,00(BO3)3,00Si6,00O18(OH3,63F0,09)3,72.

Simmons et al (2001) states that tourmalines from Antandrokomby are members of the schorl-elbaite series with significant Mg and Ca contents.
Colour:pink, green, brown
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse.
Associated Minerals Based on Photo Data:
Manandonite1 photo of Elbaite associated with Manandonite at this locality.
Data
Mineral Data:Click here to view Elbaite data
Locality Data:Click here to view Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra, Amoron'i Mania, Madagascar
Nearest other occurrences of Elbaite
7.6km (4.7 miles) Tsilaizina pegmatite, Sahanivotry Manandona, Antsirabe II, Vakinankaratra, Madagascar
17.7km (11.0 miles) Manjaka, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
20.8km (12.9 miles) Ankarinarivo pegmatite, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
21.5km (13.4 miles) Estatoby (Antanetinilapa), Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
21.9km (13.6 miles) Ampatsikahitra pegmatites, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
21.9km (13.6 miles) Tsarafara Sud (Ankadilava), Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
22.2km (13.8 miles) Tsarafara Nord (Ambalaroy), Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
22.6km (14.0 miles) Ilapa, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
29.3km (18.2 miles) Antsofimbato pegmatites, Mangarano, Antsirabe II, Vakinankaratra, Madagascar
30.0km (18.7 miles) Ambatonapetraka pegmatites, Mangarano, Antsirabe II, Vakinankaratra, Madagascar
 
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