"geo-logic"
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Ward's® Geo-Logic Cleavage, Fracture, and Parting Collection
Examples of Different Forms of Breakage in Minerals
Ward's® GEO-Logic Metallic Mineral Resources Set
Give Your Students a Lesson in Economics as Well as Geology
Ward's® Tenacity and Special Properties Topic Set
A variety of tensile strengths and physical traits represented.
Ward's® Albite
Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.

