Explanation
The Olivia-sentence can be used to remember either the order of crystallization of igneous minerals or the order of silicate minerals from least to most resistant. Each word's first letter matches the term it stands for.
- Olivine, Pyroxene, Calcium Plagioclase, Amphibole, Biotite, Sodium Plagioclase, Potassium Feldspar, Muscovite, Quartz
Additional Information
- The PC stands for Pyrox. and Cal. Plag.
- BS = Biotite and Sod. Feld - these minerals crystallize around the same temperature. BS and PC are a reminder that the order of crystallization is not as sequential as the Olivia-mnemonic suggests.