color
Graphite is a soft form of carbon used in pencils. The graphite is mixed with clay, which also contain minerals,
No, we don't use galena is pencils. Galena is the primary ore of the metal lead, and this mineral, PbS, is recovered for that purpose. We also often recover silver as a byproduct of lead processing. It is graphite that is used in pencils, and the mineral graphite is an allotrope of carbon.
Graphite is a crystalline form of carbon that is a soft grayish-black mineral used in pencils because of its ability to leave marks on paper. It is also used as a lubricant and in various other industrial applications.
The mineral graphite is soft enough to leave a mark on paper. We use graphite, which is a form of carbon, as pencil lead. And it works pretty darn well at leaving marks on paper.
Realgar is an orange-red mineral used in pyrotechnics and as a pigment for tanning.
graphite
Graphite is the mineral used as a lubricant for locks and in pencils. It is a form of carbon that has a soft, slippery texture, making it ideal for use in these applications.
Graphite is the mineral used in pencils.
Graphite is a soft form of carbon used in pencils. The graphite is mixed with clay, which also contain minerals,
No, we don't use galena is pencils. Galena is the primary ore of the metal lead, and this mineral, PbS, is recovered for that purpose. We also often recover silver as a byproduct of lead processing. It is graphite that is used in pencils, and the mineral graphite is an allotrope of carbon.
Graphite is the mineral used in pencils. It is a form of carbon that allows for smooth writing and drawing.
The mineral commonly found in pencils is graphite. Graphite is a form of carbon and is a soft, black, and shiny mineral that leaves marks on paper when used in writing or drawing.
graphite
Graphite is the mineral used in pencils. It is a form of carbon that leaves a dark mark when applied to paper.
The regular mineral lead Is used for making pencils and other things
Graphite is a crystalline form of carbon that is a soft grayish-black mineral used in pencils because of its ability to leave marks on paper. It is also used as a lubricant and in various other industrial applications.
The mineral graphite is soft enough to leave a mark on paper. We use graphite, which is a form of carbon, as pencil lead. And it works pretty darn well at leaving marks on paper.