Python script producing a graphical classification of dioctahedral and trioctahedral mica after Tischendorf et al., (1997). Data is from Nissen (2024).

Tischendorf, G., Gottesmann, B., Förster, H.J. and Trumbull, R.B., 1997. On Li-bearing micas: estimating Li from electron microprobe analyses and an improved diagram for graphical representation. Mineralogical Magazine, 61(409), pp.809-834.

Nissen, A, 2024, Mica geochemistry, and paired in situ 87Rb/87Sr and in situ 40Ar/39Ar geochronology of the Brazil Lake Li-Cs-Ta pegmatite, Nova Scotia, Canada, MSc. thesis, Saint Mary's University, Halifax, Nova Scotia