Crystal

Crystals are one of the items that can be collecting in The Sims 4. They can be found while exploring rocks, and will provide the Energize Emotion aura.

The Sims 4: Get Famous introduces the Celestial Crystal Crown, which can change a Sim's traits temporarily.

Crystals can be sent to the Geo Council to be broken down into element for §20. One of the possible elements listed will be in the mail the following day. In The Sims 4: Get to Work, Scientists can analyze crystals and metals themselves.