Quartz, datolite, prehnite and albite are found as pseudomorphs after anhydrite within zones 3 and 4 of the lower and middle amygdaloids.
It is distributed throughout the amygdaloids starting near the bottom of zone 4 and continuing upward into zone 1.
Chalcopyrite is found throughout zones 3 and 4 of the lower and middle amygdaloids as brassy sphenoidal crystals up to 1 cm on datolite, prehnite, albite and heulandite.
Datolite is plentiful in the amygdaloids from the middle of zone 3 downward through zone 4.
Prehnite occurs in the amygdaloids distributed between the top of zone 4 and the upper part of zone 3.