Solid Naturally occuring Inoraganic Fixed Composition Crystallization
SolidNaturally occurringInorganicFixed CompositionCrystal Structure
Pencil "lead" is not actually lead; it is made from a mineral called graphite. Graphite is a crystalline form of carbon that is naturally occurring and meets the criteria to be classified as a mineral based on its chemical composition and physical properties.
Pencil "lead" is not actually lead, but typically made of graphite, which is a mineral. Graphite is a form of carbon that is naturally occurring and mined from the earth.