Kristallid

Kristallids are a fictional species appearing in the science fiction novel "The Mote in God's Eye" by Larry Niven and Jerry Pournelle. They are a silicon-based life form, a stark contrast to the carbon-based life common to Earth. Their biology is characterized by crystalline structures, which form their bodies and facilitate their unique metabolism. They are capable of a form of asexual reproduction where new individuals bud off from existing ones.

The species is highly intelligent and possesses advanced technology. However, their societal structure and motivations are alien to humans, making communication and understanding a significant challenge. A key aspect of their nature is a deeply ingrained biological imperative for expansion and reproduction, which can lead to conflict with other species when resources become scarce. Their appearance is often described as angular and multifaceted, reflecting their crystalline composition. They are a significant example of how alien life might differ fundamentally from terrestrial biology.