4. How does the internal structure of a mineral relate to its external appearance?


Minerals make up all stones excluding obsidian and coal. Many rocks include a variety of minerals in a composition that is unique to the geological formations. When recognizing a rock, the constituent minerals which constitute that rock should first be identified.
Minerals are inorganic substances that exist naturally and have a range of chemical as well as crystal lattice arrangements. The physical characteristics of minerals are influenced by the chemical composition as well as the crystal lattice working together. A mineral's molecular formula and crystalline structure could only be confirmed in a lab, but anyone can recognize it by looking at it and identifying a few of its physical features.
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