[Certa pedra preciosa.]

http://lila-erc.eu/data/lexicalResources/LatinPortuguese/Fonseca/id/LexicalSense/n04683.sg01.s01 an entity of type: LexicalSense

[Certa pedra preciosa.] 
Plin. 
[ Certa pedra preciosa . ]  

data from the linked data cloud