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, leader-like 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'.

~!Lapis's aforementioned head would then go on to be the substitute for Phosphophyllite's after they lose theirs to the Lunarians. After their head is first attached to Phos, Lapis appears in Phos' dream as an apparition of some sort. Lapis implies that this dream-like apparition is being caused by them leaving a 'message' to their inclusions to give to the next gem who hosts their head. They explain to Phos that they also wanted to understand the Lunarians, but by trying to rationalize their illogical actions during a battle, they were shot by arrows causing them to lose their head and be taken to the Moon. Attaching Lapis's head influences Phos's personality, as the two personalities seem to mix. Phos inherits Lapis's deductive abilities and becomes attentive to details and able to strategize more. The bottling emotions remains and becomes worse as Lapis’s personalities adds a more secretive and manipulative nature to Phos.!~

(Source: Houseki no Kuni Wiki, edited)