Formerly described as "schefferite", "manganoan aegirine", "manganoan schefferite".
Light to dark brown granular masses with minor associated minerals. This material is from our 1958 stock.
The specimens shown are randomly selected from stock, and may not be the actual specimens selected for your order, but will be similar.
Free shipping to US orders - you must order a minimum of $10.00 worth of specimens (mix and match)