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Figure 32. Reference weights. A: Weights. B: Tweezers.

Weighing Crucibles

** When preparing for LOI make sure samples high in carbonates or sediment samples go in CERAMIC crucibles instead of QUARTZ.***

Putting sediment in quartz crucibles ruins the crucibles and the LOI 

 The quartz crucibles have three sections: an outer (or large) crucible, an inner (or small) crucible, and a lid (Figure 33).

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