LITHIUM ALUMINUM SILICATE
LITHIUM ALUMINUM SILICATE Basic information
- Product Name:
- LITHIUM ALUMINUM SILICATE
- Synonyms:
-
- Aluminosilicicacidlithiumsalt
- Lithiumaluminiumsilicate
- silicicacid(h2sio3),aluminumlithiumsalt(2:1:1)
- ALPHA-SPODUMENE
- LITHIUM ALUMINUM SILICATE
- aluminium lithium silicate
- SILICICACID,LITHIUMALUMINIUMSALT
- CAS:
- 12068-40-5
- MF:
- AlLiO10Si4
- MW:
- 306.26
- EINECS:
- 235-098-6
- Mol File:
- 12068-40-5.mol
LITHIUM ALUMINUM SILICATE Chemical Properties
- Melting point:
- 1432 °C
- Density
- 2,65 g/cm3
- color
- white monoclinic crystals, crystalline
- CAS DataBase Reference
- 12068-40-5
- EPA Substance Registry System
- Silicic acid (H2SiO3), aluminum lithium salt (2:1:1) (12068-40-5)
LITHIUM ALUMINUM SILICATE Usage And Synthesis
Chemical Properties
white powder(s); used in ceramic flux formulations, as a solid electrolyte, and in heat sinks for solar and nuclear applications [FMC93] [STR93]
Chemical Properties
The mineral spodumene is a lithium aluminum silicate corresponding to the formula LiAlSi2O6 and occurs in monoclinic prismatic crystals, occasionally of very large size. It also occurs massive. Spodumene has a perfect prismatic cleavage often very noticeable; uneven to splintery fracture; brittle; hardness, 6.5 7.5; specific gravity, 3 3.2; luster, vitreous to dull; color, grayish- to greenish-white, green, yellow and purple. Its streak is white; it is transparent to translucent.
Origin of Name
The name spodumene is derived from the Greek meaning ash-colored, particularly appropriate for the slightly weathered varieties. Hiddenite, the beautiful emerald-green or yellow-green spodumene that is used as a gem,was named for W.E. Hidden. Kunzite, named in honor of George F. Kunz.
Occurrence
Spodumene is characteristically a mineral of the pegmatites, and it is found in Sweden, Ireland, Madagascar and Brazil. In the United States it is found especially in the pegmatites of Oxford County, Maine; in the towns of Goshen, Huntington and Chesterfield in western Massachusetts; at Branchville, Connecticut; in North Carolina; in South Dakota in huge crystals and in San Diego and Riverside Counties in California.
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