Initial Publication Date: October 25, 2006
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Cite thisCalcite
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Open the Crystal Structures Library on the CrystalMaker disc, and click on Minerals > Non-Silicates > Carbonates > Calcite.
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Click on the CALCITE file in the XtalDraw folder.
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Go to
Crystal Structures (more info) and choose "Calcite lattice", which is listed under "Some common non-cubic lattices". This resource is currently off-line. Please check back at a later date.
Questions
- What is the coordination number of C in calcite? Why does it not have a higher CN?
- What is the radius ratio (cation/anion) for calcite?
- How are the Ca atoms and carbonate complexes arranged in the calcite structure?
- Look down the axis of the rhomb (body diagonal). What is the symmetry? Is this consistent with the bond angles in the carbonate complexes?
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