Question

crystallization is the process by which atoms are arranged to form a material that has a crystal structure. minerals such as halite, calcite, and gypsum form through crystallization when bodies of water on earths surface evaporate.
in another example, the huge crystals in figure 1 formed from a solution of water heated by energy from earths interior that eventually cooled underground. but the process was an extremely long one, taking place over millions of years.
minerals from magma and lava many minerals form when hot magma from earths interior cools higher up in the crust, or as lava cools and hardens on the surface. when these liquids cool to a solid state, they form crystals.
the size of the crystals depends on several factors, including the rate at which the melted rock cools. slow cooling leads to the formation of large crystals, such as coarse quartz and feldspar crystals found in granite that slowly cools underground. fast cooling leaves very little time for crystals to grow. lava cools quickly on the surface or under water and forms small crystals, such as pyroxene and fine-grained olivine in basalt rock of the oceanic crust.
reading chec summarize text what type of minerals might a geologist expect to find near the site of an ancient lava flow? explain.

Explanation:

The text mentions that minerals form as lava cools. Lava cools quickly on the surface or under water and forms small crystals. Pyroxene is a mineral that forms from lava cooling.

Answer:

Minerals formed as lava cools, such as pyroxene (and fine - grained olivine). Because lava cools quickly (on the surface or under water) near the site of an ancient lava flow, leaving little time for crystals to grow, so small - crystal minerals like those formed from lava cooling would be expected.