English: Samples of Hook Mountain Basalt taken from the base of the lowest flow. The rock is extremely
vesicular, and many of the cavities are filled with secondary minerals (amygdaloidal texture). These samples were retrieved from the northernmost section of
Third Watchung Mountain, along the border of
Wayne and
Pompton Lakes in
New Jersey.
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{{Information |Description ={{en|1=Samples of Hook Mountain Basalt taken from the base of the lowest flow. The rock is extremely
vesicular, and many of the cavities are filled with secondary minerals (amygdaloidal texture).
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