Tistarite: Difference between revisions
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A | A form titanium oxide with stoichometry Ti<sub>2</sub>O<sub>3</sub> that is isostructural to [[leukosapphire]] Al<sub>2</sub>O<sub>3</sub>. <br> | ||
Maybe via checkerboard patterning during [[piezomechanosynthesis]] a transition is possible giving some [[Neo-polymorph]] series. | Maybe via checkerboard patterning during [[piezomechanosynthesis]] a transition is possible giving some [[Neo-polymorph]] series. | ||
Same elements as rutile TiO<sub>2</sub> but different stoichometry. | |||
* Pro: Titanium is common in earths crust (and in space) | * Pro: Titanium is common in earths crust (and in space) | ||
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'''Overall a good base material for [[gemstone metamaterial technology]] for [[large scale construction]].''' | '''Overall a good base material for [[gemstone metamaterial technology]] for [[large scale construction]].''' | ||
* Formula: | * Formula: Ti<sub>2</sub>O<sub>3</sub> | ||
* Hardness Mohs 8.5 | * Hardness Mohs 8.5 | ||
* Crystal system: Trigonal (the same as [[sapphire]] but different unit cell) | * Crystal system: Trigonal (the same as [[sapphire]] but different unit cell) | ||
Revision as of 07:35, 23 September 2025
A form titanium oxide with stoichometry Ti2O3 that is isostructural to leukosapphire Al2O3.
Maybe via checkerboard patterning during piezomechanosynthesis a transition is possible giving some Neo-polymorph series.
Same elements as rutile TiO2 but different stoichometry.
- Pro: Titanium is common in earths crust (and in space)
- Pro: Hardness is high
- Pro: Crystal structure is simple
- Con? unit cell is a bit big
Overall a good base material for gemstone metamaterial technology for large scale construction.
- Formula: Ti2O3
- Hardness Mohs 8.5
- Crystal system: Trigonal (the same as sapphire but different unit cell)
- Density ~4.53g/ccm
- Refractive index: ?? – likely quite high
Misc trivia:
Titanium is in a unusual trivalent form here
(as in grossmanite a titanium chain silicate).
Related
Other polymorphs of same formula:
Isostructural gems:
- Leukosapphire (gem grade corundum) Fe2O3 – Mohs 9 (defining mineral) – optically transparent
- Hematite Fe2O3 – Mohs 5-6 (rather soft in comparison) – optically metallic
- Escolaite Cr2O3 – Mohs 8.0-8.5 – Cr is not too abundant – optically metallic black?
- Karelianite V2O3 – Mohs 8-9 – V is not too abundant – optically metallic