Strontium titanate
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Description
Transparent, colorless single crystals of strontium titanate have been grown synthetically since the late 1940s. Strontium titanate is used as imitation diamonds and for electronic components. The natural mineral of strontium titanate (tausonite) is muddy brown to gray color. It was discovered in 1982.
Synonyms and Related Terms
imitation diamond
Physical and Chemical Properties
- Insoluble in water. Attacked by hydrofluoric acid.
- Crystal system=cubic
- Fracture = conchoidal
- Cleavage = none
- Luster = adamantine
- Streak = brown
| Composition | SrTiO3 |
|---|---|
| Mohs Hardness | 6.0-6.5 (nat.) 5.5 (syn.) |
| Melting Point | 2060 C |
| Density (g/ml) | 4.81-4.88 (nat.) 5.13 (syn.) |
| Refractive Index | 2.41 |
Comparisons
Natural and Simulated Diamonds
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Wikipedia: http://en.wikipedia.org/wiki/Strontium_titanate (Accessed Jan. 25, 2006)