Malachite is a copper mineral with many properties, including its color,…

Malachite is a copper mineral with many properties, including its color, hardness, and how it reacts to heat. Malachite is also known for its use as a pigment and gemstone. Color Malachite is usually green, but can also be dark green or blackish green Malachite can be banded in two or more tones of green Malachite can appear yellowish green when viewed in transmitted light Hardness Malachite is a soft mineral with a Mohs hardness of 3.5–4.5 Malachite is porous and can crack if exposed to heat suddenly Reaction to heat Malachite is very sensitive to heat and its color can change or it can crack if exposed to heat suddenly