# Introduction Petra is a family of gestalts in Atheneum. # Primary Gestalt ## Petra Primary Recipe: [[Geon]]+[[Pyron]] Designations: Stone, Factor Petra is the prime gestalt of the petra family. When used individually, it creates smooth pebbles of similar make to sediment, although each pebble is notably stronger than sediment. # Secondary Gestalts ## Ignis Firestone Primary Recipe: [[Pyron]]+Petra Designations: Stone, Product This stone gives off low levels of heat. When fashioned into equipment, ignis can prevent low-level cold status effects. ## Cryonis Icestone Primary Recipe: [[Cryos]]+Petra Designations: Stone, Product Cryonis is a mineral that remains cold to the touch, despite its surroundings. It works as a low level refrigerant, and can stave off heat exhaustion. ## Sediment Cobblestone/Gravel Primary Recipe: [[Aer]]+Stone Designations: Stone, Product Sediment, sometimes known as cobblestone or gravel, is stone marked by the erosion of air. Sediment is usually rough, but not particulary strong nor particularly reactive as a stone type. When ground properly, it becomes [[Konis|Sand]]. ## Protolith Deepstone Primary Recipe: [[Geon]]+Petra Designations: Stone, Product Protolith is a stone type found deep underground. This stone is unbreakable when exposed to high levels of heat and pressure. However, in the absence of heat or pressure, Protolith becomes significantly weaker and reverts to Sediment. ## Lode Magnesis/Lodestone Primary Recipe: [[Elektron]]+Petra Designations: Stone, Factor Lode is a magnetic stone material. This stone forms the basis for mana charge stones and metal gestalts. ## Lime Limestone Primary Recipe: [[Hydron]]+Petra Designations: Stone, Powder, Pigment, Factor Lime is a stone eroded by water and strengthened mineral deposits. It can be used as an adhesive, and is often used in city construction as a primary material. When ground to a powder, it is commonly used as a white pigment. ## Laterite Rainstone Primary Recipe: [[Nephon]]+Petra Designations: Stone, Product Laterite is a reddish stone that has been weathered by rain. Strengthened by mineral deposits, laterite is a dependable building material and is a crucial factor for several metals. ## Shale Claystone Primary Recipe: Petra+[[Geon|Clay]] Designations: Stone, Product Defined by its fissility, Shale often breaks into thin layers and shards.