Beryl: Difference between revisions
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* [[Bromellite]]: BeO, Mohs 9, hexagonal | * [[Bromellite]]: BeO, Mohs 9, hexagonal | ||
* [[Topaz]] … another unusually hard widely known silicate but avoiding elemental scarcity | * [[Topaz]] Mohs 8 (defining mineral) … another unusually hard widely known silicate but avoiding elemental scarcity | ||
== External links == | == External links == | ||
* https://en.wikipedia.org/wiki/Beryl | * https://en.wikipedia.org/wiki/Beryl | ||
Revision as of 12:14, 16 February 2024
A hard beryllium aluminum silicate.
Beryllium is rare so usefulness as structural material is limited.
Al2Be3[Si6O18], hexagonal, Mohs 7.5 to 8.0
- 🟩 Green form of beryl is the widely known emerald.
Related
- Bromellite: BeO, Mohs 9, hexagonal
- Topaz Mohs 8 (defining mineral) … another unusually hard widely known silicate but avoiding elemental scarcity