Lapis Lazuli

Hardness: 5 One of the Gems. They were the head of the Library a position now taken up by their former partner Ghost Quartz after Lapis was taken by the Lunarians. Upon being taken only their head was able to be retrieved. Lapis had a charming leaderlike personality. They had keen observation and great deductive thinking skills and because of that had great confidence in themselves. Euclase remarks that Lapis was extremely smart and pleasant to talk to but was more eager to use their skills to satisfy their intellectual curiosity rather than for the benefit of others. This meant they could be quite manipulative at times. Cairngorm remarks that they could quietly conceal secrets for centuries and were surprisingly deceiving. Source: Houseki no Kuni Wiki edited