Difference between revisions of "Oxygen"
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* CO<sub>2</sub> normally the well known gas but highly explosive when in solid sp3 form (analog to quartz) | * CO<sub>2</sub> normally the well known gas but highly explosive when in solid sp3 form (analog to quartz) | ||
* SiO<sub>2</sub> quartz and its various known polymorphs (~Mohs 7) | * SiO<sub>2</sub> quartz and its various known polymorphs (~Mohs 7) | ||
| − | * GeO<sub>2</sub> [https://en.wikipedia.org/wiki/Argutite argutite] Mohs 6-7 - [[germanium]] is a rather rare element | + | * GeO<sub>2</sub> [https://en.wikipedia.org/wiki/Argutite argutite] Mohs 6-7 -- [[germanium]] is a rather rare element! |
* SnO<sub>2</sub> [https://en.wikipedia.org/wiki/Cassiterite cassierite] Mohs 6-7 | * SnO<sub>2</sub> [https://en.wikipedia.org/wiki/Cassiterite cassierite] Mohs 6-7 | ||
* PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Lead_dioxide] -- alpha-PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Scrutinyite scrutinyite] -- beta-PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Plattnerite plattnerite] {{todo|find out Mohs hardness of PbO<sub>2</sub> minerals}} | * PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Lead_dioxide] -- alpha-PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Scrutinyite scrutinyite] -- beta-PbO<sub>2</sub> [https://en.wikipedia.org/wiki/Plattnerite plattnerite] {{todo|find out Mohs hardness of PbO<sub>2</sub> minerals}} | ||
Revision as of 09:20, 4 December 2016
- Up: Chemical element
Oxides
(TODO: discuss major ones here)
Carbon group / group IV / group 14 oxides
- CO2 normally the well known gas but highly explosive when in solid sp3 form (analog to quartz)
- SiO2 quartz and its various known polymorphs (~Mohs 7)
- GeO2 argutite Mohs 6-7 -- germanium is a rather rare element!
- SnO2 cassierite Mohs 6-7
- PbO2 [1] -- alpha-PbO2 scrutinyite -- beta-PbO2 plattnerite (TODO: find out Mohs hardness of PbO2 minerals)
(TODO: Here maybe some pseudo phase diagrams can be made.)
Related
External links
- unstable oxygen chain polymers [2]
