You Are Here : Home / Explore/ Natural heritage / Adrian Smith Mineral Collection / Minerals, gems and meteorites / 268-402 Silicates / Crystaline

278. Andalusite. Crystaline

View in new window

Dana number

52.2.2b.1

Chemical formula

Al₂O(SiO₄)

Crystal class

Orthorhombic

Mohs hardness

6.5-7.5

Specific gravity

3.13-3.21

Collected in

Tyrrol , Austria

Back to top