Basalt does not have cleavage, it has fracture.
Basalt does not exhibit cleavage, only fracture.
== == Some basalts may be older than some sandstones, but ages of sandstones and basalts vary tremendously. Some sandstones are therefore older than some basalts. Oceanic basalts are rarely over 200 million years in age.
cleavage....
no cleavage
Show cleavage? What Cleavage? Not really
Basalt does not exhibit cleavage, only fracture.
== == Some basalts may be older than some sandstones, but ages of sandstones and basalts vary tremendously. Some sandstones are therefore older than some basalts. Oceanic basalts are rarely over 200 million years in age.
cleavage....
Galena's cleavage is cubic.
Sulfur's cleavage is imperfect.
Silvers Cleavage Is Silver Doesn't Split .
Cobalt has a cleavage in three directions, forming a cube.
no cleavage
flood basalts and volcanoes
Show cleavage? What Cleavage? Not really
Muscovite has perfect basal cleavage, or book cleavage.
Flood basalts build volcanic cones because flood basalts are believed to originate when the head of a mantle hotspot first arrives beneath the base of a plate. Because of this, they are unable to build volcanic cones.