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LiAlSi2O6 A white to yellowish-, purplish-, or emerald-green clinopyroxene mineral occurring in prismatic crystals; hardness is 6.5-7 on Mohs scale, and specific gravity 3.13-3.20; an ore of lithium. Also known as triphane.



(also triphane), a mineral of the clinopyroxene group, which belongs to the inosilicate class of silicates. The chemical composition is LiAl[Si2O6]. Spodumene forms elongated prismatic crystals 1–10 cm in length; the length of the crystals sometimes reaches 1 m and, less frequently, 10–16 m. Colors are gray, yellowish, greenish, or pinkish, but sometimes the mineral is colorless. The transparent pink and violet-pink varieties are called kunzite, whereas the emerald green varieties are called hiddenite.

Spodumene has a vitreous luster, a hardness of 6.5–7 on Mohs’ scale, a density of 3,100–3,200 kg/m3, and a perfect cleavage along the prism. When heated in the temperature range 950°-l 100°C, natural α-spodumene changes to the β-modification of the crystal structure (β-spodumene).

Spodumene occurs in granitic pegmatites of the sodium-lithium type in association with quartz, microcline, albite, beryl, lepidol-ite, tantalite, and, sometimes, pollucite and other minerals. It often alters to aggregates of eucryptite (LiAlSiO4) or aggregates of sericite with albite. In the waste mantle, it alters easily to clay minerals. Spodumene is the primary mineral of lithium ores; kun-zite and hiddenite are gems. In other countries, spodumene is used in the production of ceramics.


Ginzburg, A. I. “Spodumen i protsessy ego izmeneniia.” Tr. Mineralogicheskogo muzeia AN SSSR, 1959, issue 9.
Gordienko, V. V. Mineralogiia, geokhimiia i genezis spodumenovykh pegmatitov. Leningrad, 1970.
Ginzburg, A. I., and G. P. Lugovskoi. “Mestorozhdeniia litiia.” In Rudnye mestorozhdeniia SSSR, vol. 3. Moscow, 1974.


References in periodicals archive ?
1-2 m) blocky R-feldspar and spodumene with an intergranular matrix with variable proportions of quartz-feldsparspodumene-muscovite.
Table 71: TANCO: Spodumene concentrate production 2005 to 2011 109
The significant decrease in the residual products indicates that a large percentage of the spodumene was chlorinated along with other metals.
Some low thermal expansion materials like spodumene undergo an irreversible expansion phase in the firing which will leave the ware more porous than desirable.
The production of LiOH involves hydrochloric acid leaching of spodumene concentrate, purification of lithium chloride solution and electrolysis applying proprietary technology owned by Reed.
We will use the funds for working capital and ramp up of our Mt Cattlin spodumene project in Western Australia and Jiangsu lithium carbonate plant in China, which we're due to commission at the end of the quarter.
All 12 holes intersected spodumene mineralized pegmatite, with 10 of the holes intersecting spodumene pegmatite over intervals ranging from 4.
Perth, Mar 28, 2011 - (ACN Newswire) - Galaxy Resources Limited (ASX:GXY; "Galaxy") is pleased to announce it has successfully loaded its first shipment of spodumene at the Bunbury Port in Western Australia.
These sources which are recovered generally through solar evaporation are less expensive to recover than to mine from rock such as spodumene, petalite, and other lithium-bearing minerals.
It has the mining right of Yajiang Cuola Spodumene Mine, the capacity is 11,000 tons, and the output and sales volume of lithium products in 2012 both exceeded 11,000 tons.
These uncommon granitic bodies are of economic interest for their tantalum and tin content as well as spodumene, a high-grade lithium bearing mineral.
Minerals occurring in association with the tantalite include; spodumene, beryl, tourmaline, lepidolite and muscovite.