Gravelight Astral Marking Chalk

Gravelight Astral Marking Chalk is a fitted tin of dense marking sticks that leave two lines at once: pigment on matter and a colder trace in astral space. This Gravelight pattern uses rough gray crystal, phosphor dust, and a low glow visible through smoke, meant for bad floors and worse visibility; it sacrifices finesse for a signal nobody can miss. Gravelight's marks grip painted hull, stone, fabric, and clean skin, then fade without solvent when their charge expires. Gravelight uses a careful operator can lay a boundary, direction chain, or warning glyph quickly; sweat, dust, and broken geometry still matter. With Gravelight, every stick wears down fast. With Gravelight, saving a thumb's width of chalk by leaving a weak corner is how inexpensive supplies become expensive stories. Ninth Sign asks 230 credits, including a fitted case and one calibration check; replacement consumables are extra, because apparently consequences have a subscription model; that is the Gravelight distinction.