"Minerology." . . "Rocks." . . . . "Geology." . . . "The Story of rocks and minerals: a guidebook for young collectors"@en . . . . . . . "Shows how to begin a collection of rocks and minerals. Tells where to look for them and what to look for in differentiating a precious from a semi-precious stone."@en . "The story of rocks and minerals a guidebook for young collectors"@en . . . "Juvenile works"@en . . . . "The story of rocks and minerals, a guidebook for young collectors"@en . "The story of rocks and minerals"@en . . . . . . "The story of rocks and minerals : a guidebook for young collectors" . . .