Abstract
The vector method of representing mineral compositions, pioneered for the amphibole and mica groups, can be applied to the tourmaline group and improves upon traditional triangular representations. Formula information can be plotted directly on the diagrams or read directly from the diagrams, using ordinary graph paper or computer plotting routines. Each of the members of the tourmaline group can be derived from the composition of dravite, the Na-Ng,-Al-(OH)4 tourmaline. -from Author
| Original language | English (US) |
|---|---|
| Pages (from-to) | 826-839 |
| Number of pages | 14 |
| Journal | American Mineralogist |
| Volume | 74 |
| Issue number | 7-8 |
| State | Published - Jan 1 1989 |
ASJC Scopus subject areas
- Geophysics
- Geochemistry and Petrology