Metallic and non-metallic.
The two main types of minerals are silicates and basics.
Metallic and non-metallic.
the main types of mineral resources:are food,water
what are the two main types of environment
there are two main types the marine and freshwater
Silicate and nonsilicate.
The two main types of economy are Command and Traditional.
The two main types of friction are kinetic and static.
the two main types of communications are emailing and socialising
The two main types of friction are kinetic and static.
the first is when new mineral grows between sediment grains as dissolved minerals precipitate out of ground water, the second is when existing mineral grows larger as more of the same mineral precipitates from ground water and crystallizes around them.
what are the two main types of environment
The two main types of mineral luminescence are photoluminescence and cathodoluminescence. The excitation sources are ultraviolet radiation and electrons, respectively. Other types are ionoluminescence, chemiluminescence and others. - See the related link below.