Beryl: Difference between revisions
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A hard beryllium aluminum silicate. <br> | A hard beryllium aluminum silicate. <br> | ||
[[Beryllium]] is rare so usefulness as structural material is limited. <br> | [[Beryllium]] is rare so usefulness as structural material is limited. <br> | ||
Al<sub>2</sub>Be<sub>3</sub>[Si<sub>6</sub>O<sub>18</sub>] | Al<sub>2</sub>Be<sub>3</sub>[Si<sub>6</sub>O<sub>18</sub>], hexagonal, Mohs 7.5 to 8.0 | ||
* 🟩 '''Green form of beryl is the widely known emerald.''' | * 🟩 '''Green form of beryl is the widely known emerald.''' | ||
Revision as of 12:13, 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, Mohs9, hexagonal
- Topaz … another unusually hard widely known silicate but avoiding elemental scarcity