Black obsidian is water safe and can be worn while taking a bath or shower.
Black Obsidian Bastet Cats$29.00
It’s important to note that obsidian, like most gemstones, can be sensitive to sudden temperature changes, so avoiding exposure to extreme temperatures, such as boiling water or a sauna is best.
Also, some obsidian may have tiny fractures or natural defects that could be more vulnerable to water.
So, it is best to check if the obsidian has any visible fractures before exposing it to water for an extended period of time.