|
|
|
An orthorhombic mineral, Pb2 Mn2 Si2 O9 ;
forms a series with melanotekite; massive or in sheaflike prismatic
crystals; at Laangban and Nordmark, Sweden, and Sassari, Sardinia, Italy.
|
|
About Us DeveloDex™ OptiMall™ Success Tools Tabularium™ WebRef™
|