### Abstract

Stepwise multiple regression analyses of the apparent R(SiO) bond lengths were completed for coesite and for the silica polymorphs together with the clathrasils as a function of the variables f_{s}(O), P(pressure), f_{s}(Si), B(O), and B(Si). The analysis of 94 bond-length data recorded for coesite indicates that all five of these variables make a significant contribution to the regression sum of squares with an R^{2} value of 0.84. A similar analysis of 245 R(SiO) data recorded for silica polymorphs and clathrasils indicate that only three of the variables (B(O), f_{s}(O), and P) make a significant contribution to the regression with an R^{2} value of 0.90. -from Authors

Original language | English (US) |
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Pages (from-to) | 748-754 |

Number of pages | 7 |

Journal | American Mineralogist |

Volume | 75 |

Issue number | 7-8 |

State | Published - Jan 1 1990 |

Externally published | Yes |

### ASJC Scopus subject areas

- Geophysics
- Geochemistry and Petrology

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## Cite this

*American Mineralogist*,

*75*(7-8), 748-754.