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broad leaves
A diamond is a mineral, but it be called a "gem stone" if you want to be fancy. Stones are usually round, and is a very broad subject. It varies from very expensive to just a regular old by-the-sidewalk stone. I would say that the best description of a diamond is a crystal.
Natural resources: Coal, Silver, Gold, copper, lead, molybdenum, phosphates, uranium, bauxite, iron, mercury, nickel, potash, tungsten, zinc, petroleum, natural gas, timber.Source: www.cia.gov
Exsolution lamellae require slow cooling and a broad range bulk composition. The exsolution of feldspar for example needs to have abundant Na and K to make lamellae. The compound in the most abundance of the bulk composition will be the main part of the crystal. The smaller proportion will be the lamellae. The unmixing happens due to cation size differential. As the mineral cools it is less willing to have high energy random distribution of the elements. Once a liquid cools to its miscibility gap the mineral creates areas of each compound separately. The lamellae align crystalographically.
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There are many types of resources, especially depending on what you are referring to. There are natural resources, financial resources, and resources for writing essays, just to name a few broad categories.
The broad categories of aquatic biomass are primary producers and secondary producers.
Prokaryotic and eukaryotic cells.
Three broad categories of economic indicators are: Total Output, Income, and Spending, Employment, Unemployment, and Wages, and Production and Business Activity.
Classified and unclassified
people
minor moderate major
public and private
The four broad categories are consumption, investment, government purchases, and net exports.