Graphite is flammable on contact with magma but will never melt, meaning graphite on fire makes an excellent long-burning flame - a single boulder will burn for about nine and a half months before being consumed. This quality has applications in some fire-based traps.
In real life, graphite is used for pencil "lead". It is unknown if this will be implemented once writing is added.
[INORGANIC:GRAPHITE] [USE_MATERIAL_TEMPLATE:STONE_TEMPLATE] [STATE_NAME_ADJ:ALL_SOLID:graphite][DISPLAY_COLOR:0:7:1][TILE:'o'] comes from metamorphism of sedimentary rocks [ENVIRONMENT_SPEC:GNEISS:CLUSTER_SMALL:100]gneiss can come from shale (sed.) or granite (ign.) [ENVIRONMENT_SPEC:QUARTZITE:CLUSTER_SMALL:100] [ENVIRONMENT_SPEC:MARBLE:CLUSTER_SMALL:100] [ENVIRONMENT_SPEC:SCHIST:CLUSTER_SMALL:100] [SPEC_HEAT:409] [IGNITE_POINT:11440] [MELTING_POINT:NONE] [BOILING_POINT:16708] [SOLID_DENSITY:2160] [IS_STONE] brimstone is a better name for sulfur than sulfur, but this is just sulfur