"Cristalizada" is actually a literal translation of "crystallised" here. The use of this particular term in the Spanish text is a clear indication that Raymond Cattell's concept of fluid versus crystallised intelligence is being invoked:

"What are fluid and crystallized intelligences? Psychologist Raymond Cattell first proposed the concepts of fluid and crystallized intelligence and further developed the theory with John Horn. The Cattell-Horn theory of fluid and crystallized intelligence suggests that intelligence is composed of different abilities that interact and work together to produce overall individual intelligence."
https://www.verywellmind.com/fluid-intelligence-vs-crystalli...

"En resumen, el psicólogo Cattell sugirió dos formas diferentes de inteligencia. La inteligencia fluida se define como la capacidad de resolver nuevos problemas, usar la lógica en situaciones nuevas e identificar patrones. Por el contrario, la inteligencia cristalizada se define como la capacidad de utilizar el conocimiento y la experiencia aprendidos."
https://www.psicologia-online.com/inteligencia-fluida-e-inte...

So I think you'll have to go with the same term in the translation, because that must be the specific intellectual background of the text.