Question

a mineral crystallizes from magma deep inside earth. which characteristics can be determined given only the information above? luster streak crystal size crystal structure

Explanation:

Luster and streak require physical examination of the mineral's surface and powder - form respectively. Crystal size depends on cooling rate and time which isn't given. Crystal structure is determined by the internal arrangement of atoms and is a characteristic inherent to the mineral's chemical composition and the conditions of crystallization. When a mineral crystallizes from magma deep inside the Earth, the crystal structure is determined by the chemical composition of the magma and the temperature - pressure conditions deep within the Earth, which start to dictate the internal atomic arrangement as the mineral forms.

Answer:

crystal structure