A knife blade, scissor blades, and an uncoated aluminum pan.
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All matter has the following three characteristics: mass, volume, and length. These are the extensive properties. Mass also has intensive properties: density, color, conductivity, malleability, and luster.
scrach it on slat or your fingnali if the minerl gomes of it fake
Three visible properties of minerals are color, luster (appearance of the surface in light), and crystal shape or habit.
Metallic luster: minerals that have the appearance of polished metal, such as pyrite or galena. Vitreous luster: minerals that have a glassy appearance, like quartz or feldspar. Pearly luster: minerals that exhibit a soft, pearl-like sheen, such as talc or gypsum.
Copper is a reddish-brown metal. Copper is highly ductile, meaning it can be easily drawn into wires. Copper is a good conductor of electricity and heat.