The available data on compositional zoning in grossular-andradite (grandite) garnets occurring at different scales, mainly due to the variations of their Fe3+/Al ratios, and the hypotheses on the origin of this zoning are ...
The origin of anomalous birefringence of grossular-andradite (grandite) garnets from skarns in Mall and Russia was considered. The crystals had complex optical patterns which can be induced by superposition of two phenomena: ...