spodumene

n. transparent and usually white to yellow aluminosilicate mineral that is a significant source of lithium

"Kunzite" redirects here. For the Sailor Moon character, see Shitennou. Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate - LiAl(SiO3)2 - and is a source of lithium. It occurs as colorless to yellowish, purplish or lilac kunzite (see below), yellowish-green or emerald-green hiddenite, prismatic crystals, often of great size. Single crystals of 14.3m in size are reported from the Black Hills of South Dakota.
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Noun
1. a pyroxene mineral consisting of lithium aluminum silicate; a source of lithium
(hypernym) mineral
(hyponym) kunzite
(substance-meronym) lithium, Li, atomic number 3

(n.)
A mineral of a white to yellowish, purplish, or emerald-green color, occuring in prismatic crystals, often of great size. It is a silicate of aluminia and lithia. See Hiddenite.
  

General Information:
 Chemical Formula:
LiAlSi2O6
 Composition:
(Molecular Weight = 186.09 gm)
Lithium 3.73 % Li
Aluminum 14.50 % Al
Silicon 30.18 % Si
Oxygen 51.59 % O 
 Empirical Formula:
LiAl(Si2O6)
 Environment:
Lithium-bearing granitic pegmatites.
 IMA Status:
Approved IMA 1960
 Locality:
Pala district, San Diego Co., California.
 Name Origin:
Spodumene is from the Greek, spodoumenos, "burnt to ash," alluding to the ashy color of early specimens. Kunzite is named after the American gem expert, G. F. Kunz (1856-1932). Hi ddenite is named after the American mi
Physical Properties:
 Cleavage:
[110] Perfect, [100] Good
 Color:
grayish white, pink, violet, emerald green, or yellow.
 Density:
3.1 - 3.2, Average = 3.15
 Diaphaniety:
Transparent to translucent
 Habits:
Bladed - Aggregates of thin lath-like crystals (e.g. kyanite)., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
 Hardness:
6.5-7 - Pyrite-Quartz
 Luminescence:
Non-fluorescent.
 Luster:
Vitreous (Glassy)
 Streak:
white
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