But to *ensure* 3 high-clay, consider: if you pick 5+5+5 = 15 samples, all non-high-clay possible. - AMAZONAWS
Title: The Critical Importance of Confirming 3 High-Clay Samples: Why Avoiding Non-Clay Materials Matters
Mar 06, 2026
Title: The Critical Importance of Confirming 3 High-Clay Samples: Why Avoiding Non-Clay Materials Matters