The Mineralogist

The Mineralogist

4.11 - 1251 ratings - Source

Because of its simplicity and very low cost, the polariscope is an instrument that all mineral collectors should have. Even if you dona#39;t want to make ... filters is about 41/2 inches. The only problem is holding the filters and mounting the analyzeranbsp;...

Title:The Mineralogist
Publisher: - 1963


You Must CONTINUE and create a free account to access unlimited downloads & streaming