They are not naturally occurring
They are not naturally occurring
they are not naturally occurring inorganic solids with a crystalline structure. Minerals must have a distinct chemical composition and structure, whereas cement, brick, steel, and glass are man-made products that do not meet all the criteria to be classified as minerals.
Brick, steel, and glass are not classified as minerals because they are man-made, processed materials that do not occur naturally in the Earth's crust in their current form. While they may be made from substances found in the Earth's crust (such as clay for brick, iron ore for steel, and silica for glass), the way these materials are extracted, refined, and processed alters their mineral composition. Minerals are naturally occurring inorganic solids with a specific chemical composition and crystal structure.
true or false
the minerals that make up a brick are cobalt, lithium, and nickel
glass can be organic. brick is manmade steel can be organic
Clay and Rock
A rock is an agglomeration of different minerals. Minerals are classified into categories based on their chemistry: oxides, sulphides, silicates, carbonates etc. Rocks are classified primarily by the process that formed them: igneous, sedimentary, or metamorphic.
The three minerals that are metals and can scratch glass are iron pyrite (pyrite), hematite, and magnetite. These minerals have a high hardness level, allowing them to scratch glass and show metallic luster.
No some like brass are not classified as minerals.
an insulator
A rock is an agglomeration of different minerals. Minerals are classified into categories based on their chemistry: oxides, sulphides, silicates, carbonates etc. Rocks are classified primarily by the process that formed them: igneous, sedimentary, or metamorphic.