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Strontium Titanate


Properties
Chemical Composition: 
Strontium Titanate - SrTiO3
Classification / Type: 
Strontium Titanate is a man made material. The term synthetic is not used to refer to this material, since it does not have a natural counterpart.
Colors / Varieties: 
Colorless when pure; dopants give various colors.
Crystal System / Forms: 
Cubic System
Hardness: 
6
Specific Gravity: 
5.13
Cleavage / Fracture: 
None / Conchoidal fracture
Optic Character: 
Isotropic (S.R.)
Lustre: 
Sub-Adamantine
Refractive Index / Birefringence: 
2.409
Pleochroism: 
None
Dispersion: 
0.190 (high fire)
Magnification: 
Generally clean, but gas bubbles maybe seen, dispersive fire is seen on the pavilion facets.
U.V. Fluorescence: 
Inert
Spectrum: 
Not characteristic
Cause of Color: 
-
Treatment (Enhancement): 
-
Specific Tests & Remarks: 
High dispersive fire; low see through effect.
Synthesis: 
Flame Fusion Method
Simulants (with key separation tests): 
Diamond (dispersion, S.G.), Y.A.G. (dispersion, S.G.), G.G.G. (S.G., dispersion), Zircon (optic character, doubling, spectrum), Synthetic Rutile (optic character, dispersion), Synthetic Cubic Zirconia (dispersion, S.G.), etc.
Geological Occurrence: 
In a laboratory. No natural counterpart.
Sources: 
-
Cuts & Uses: 
Facetted cuts, beads, etc.
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