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Elbaite tourmaline

#PD34905

Elbaite tourmaline

#PD34905
Availability
Sold
Size
7 x 5 x 5 cm - Sm Cabinet 
Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 (RRUFF)
Locality
Newry Mica mine, Oxford Co., Maine, United States
Tagged
pegmatite

A typical pegmatite specimen of "watermelon" tourmaline with an outer edge of green elbaite and a core of elbaite variety rubellite" and reflects the changing composition of the pegmatite fluid as mineral phases crystallize. The crystal of tourmaline is 3.5cm across. I am not sure what the yellow spot is, perhaps beryl.

Elbaite

Formula
Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Striated, Prismatic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, colorless, green, yellow, white 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
7.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Elbaite
On Dakota Matrix
Other Available Elbaite
WebMineral
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