obsidian
Smooth and shiny with no visible grain.
It goes shiny and smooth.
use conditioner, it's gonna make your hairs shiny and smooth.
A dull grainy looking rock is more likely to let water pass through it compared to a smooth shiny rock. The rough texture of the grainy rock provides more surface area for water to seep into and flow through, while the smooth rock may have a more compact structure that prevents easy passage of water.
Marble. The crystals are ofcalcite (calcium carbonate). It's only smooth when polished, but it takes a high polish.
i think that igneous and metamorphic rocks uses luster because maybe they have it in them
The Dull and grainy looking rock is more likely to let water pass though
It isn't.... take water for example it isn't "smooth" or "shiny" but has reflective properties
A rock that is heavy and silky could potentially be anthracite, which is a type of coal known for its high density and smooth, shiny appearance. Another possibility could be serpentine, a metamorphic rock that can have a slick, smooth surface due to its high content of the mineral serpentine.
Shiny and smooth.
mica
Because it is a metal and can be polished to a smooth shiny surface.