Amphibole
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Amphibole
Amphibole (/æmˈfɪboʊl/) is a group of inosilicate minerals, forming prism or needlelike crystals, composed of double chain SiO4 tetrahedra, linked at the vertices and generally containing ions of iron and/or magnesium in their structures.
Etymology
The name amphibole comes from the Ancient Greek amphíbolos (ἀμφίβολος), meaning 'ambiguous', referring to its variable composition.
Related Terms
- Inosilicate: A type of silicate mineral that has silicate tetrahedra arranged in chains.
- Crystal: A solid material whose constituents are arranged in a highly ordered, repeating pattern extending in all three spatial dimensions.
- Tetrahedra: A polyhedron composed of four triangular faces, three of which meet at each vertex.
- Iron: A chemical element with symbol Fe and atomic number 26.
- Magnesium: A chemical element with symbol Mg and atomic number 12.
See Also
External links
- Medical encyclopedia article on Amphibole
- Wikipedia's article - Amphibole
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