_______ are minerals that are usually malleable, good conductors of heat and electricity, and lustrous.
A) Rocks
B) High-grade ores
C) Low-grade ores
D) Metals
E) Phosphates

Question

Quizplus · Accepted Answer

The characteristics described in the question are typical of metals, which are usually malleable, conductive, and lustrous. Rocks and ores may contain minerals, but not all minerals are malleable or conductive. Phosphates are a specific type of mineral and do not exhibit the described characteristics.

_______ Are Minerals That Are Usually Malleable, Good Conductors of Heat