Malachite
/ˈmæləkaɪt/
Definition 1 of 1
Pro Tip 1/3Mineral Usage
Used to describe the mineral itself or items made from it. 
The museum displayed a raw piece of malachite.
Pro Tip 2/3Color Descriptor
Can refer to the distinctive green color of items, not just the mineral. 
She admired the malachite hues of the painting.
Pro Tip 3/3Ornamental Value
Often specifies objects with decorative or gemstone quality. 
Their malachite chess set was quite opulent.