What characteristic makes a substance a mineral?
For a substance to be a mineral, it must be a naturally occurring, inorganic, crystalline solid that has a characteristic chemical composition and crystal structure.
What are the 5 characteristics necessary for a substance to be a mineral?
The five characteristics necessary for a substance to be a mineral are Naturally Occurring, Inorganic, Solid, crystal structure and Definite Chemical Composition.
What helps you tell whether a substance is a rock or a mineral?
Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage. Crystal form, cleavage, and hardness are determined primarily by the crystal structure at the atomic level.
What characteristics do rocks and minerals have in common?
First, a rock is composed of one or more minerals and sometimes mineraloids but do not have a crystal structure. A mineral is a chemical substance made up of one or more chemicals having a definite crystal structure. Rocks do not have a definite chemical composition whereas minerals do.
What are the important factors needed to form a rock in this scenario?
Four basic processes are involved in the formation of a clastic sedimentary rock: weathering (erosion)caused mainly by friction of waves, transportation where the sediment is carried along by a current, deposition and compaction where the sediment is squashed together to form a rock of this kind.
What are two factors are necessary to form metamorphic rock?
The two factors that produce metamorphic rocks are pressure and heat. Pressure comes from the rock being buried beneath the surface of the Earth.
What are the different kinds of metamorphic rocks How are they classified?
Metamorphic rocks are broadly classified as foliated or non-foliated. Non-foliated metamorphic rocks do not have aligned mineral crystals. Non-foliated rocks form when pressure is uniform, or near the surface where pressure is very low.
How are metamorphic rocks used by humans?
Uses of Metamorphic Rocks Marble is used for decorative items and in art. Quartzite and marble are commonly used for building materials and artwork. Marble is beautiful for statues and decorative items such as vases (see an example in figure 3). Ground up marble is also a component of toothpaste, plastics, and paper.