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Keywords from Image Description:
Chabazite. The chabazite spheres are mm in diameter Found July MOB coll Chabazite used to be rare at MSH but this material was very abundant in the Poudrette pegmatite According to Horvth et al Lapis Rivista the chabazite from the pegmatite complex is chabaziteCa but for some reason it seems to be marketed as chabaziteNa So