| Cristallo |
 Risorse |
| Usi principali |
| Academy expansion, Temple expansion, Conducting Experiments, Unit upgrades, Ship upgrades |
| Produzione |
| Crystal mine |
Usage
Crystal Glass 
can be used for:
- Expansion of the Temple, Academy (Level 4 and higher), and both the Governor's Residence and Palace (Level 5 and higher).
- Researching of Unit upgrades and Ship upgrades at the Workshop.
- Training of Diving Boats at the Shipyard, Doctors at the Barracks and Spies at the Hideout.
- Swapping it for research points at the Academy after Experiments has been researched.
- Donations to the Miracle on non-crystal glass islands.
Other information
- An Optician decreases Crystal Glass
costs for all of these uses, except for Miracle donations, by 1% per level in the town it is built in.
- A Glassblower increases the Crystal Glass production of a Crystal mine by 2% per level in the town it is built in.
- The Ikariam Plus Crystal Glass production bonus is a separate process and does not affect the bonus from the Glassblower.
- The Ikariam Plus Crystal Glass
Per further information on crystal glass production, vedi Crystal mine.
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