The Mineral you mention is I think called Samarskite
Magnatite is the mineral that has a nonmatallic luster, is black, and can be scratched by a fingernail.
The mineral that can leave black grease on your hands is coal. It contains carbon compounds that can rub off as a black residue on your skin.
Mica :)
Magnetite
The mineral that fits this description is graphite. Graphite is very soft and can be easily scratched by a fingernail. It has a metallic luster and a black streak.
The black in igneous and metamorphic rocks could be any of numerous black minerals. Two that are commonly found are biotite mica and hornblende.
Black And Grayish
BLACK
The mineral you are referring to is likely magnetite. Magnetite is a black mineral with a nonmetallic luster, often appearing metallic or glassy. It is a common iron oxide mineral found in a variety of geological settings.
Sugar is not a mineral
Magnatite is the mineral that has a nonmatallic luster, is black, and can be scratched by a fingernail.
The mineral that can leave black grease on your hands is coal. It contains carbon compounds that can rub off as a black residue on your skin.
The mineral that leaves a black streak is called magnetite. When magnetite is scratched against a white ceramic plate, it leaves a distinctive black streak behind.
a type of black sparkly mineral
Hematite is black.
Grayish to black
Obviously Black Coral.