Ruby
Appearance
Chemical formula Al2O3. Ruby is the pinkish-red to blood-red-coloured gem variety of corundum. Rubies have been mined throughout Earth history for their high value in jewellery and fashion, as well as for their hardness in devices used in manufacturing.
— In-Game Description
Ruby is a Mineral Commodity. It is produced exclusively through Surface Mining, and is considered highly valuable. It is consumed by many Tourism, High Tech, and Industrial markets.