Oysters have been one of the more successful adaptors with their rapid genetic modification. Due to the chemicals in the waters the oysters of Helvetitj produce a range of vividly coloured but natural pearls which are in high demand for decorative purposes, but are valued as a food source as well.
— In-Game Description
Helvetitj Pearls is a specific item of Metals in the galaxy.
Rare goods increase in value the further you travel from their point of purchase.