Vibrant Green Malachite Suns on Siltstone - Australia

These are forest green malachite suns on a kaolinitic siltstone/sandstone matrix. They were collected from the Malbunka Copper Mine in the Northern Territory of Australia. Over time exposure to water, air and other chemical processes has degraded the originally blue azurite to the related mineral malachite.

It comes with an acrylic display stand.

Malachite is an intense green copper-based mineral that can be found in a wide variety of forms. Malachite can grow in botryoidal masses, stalactitic formations, and reniform formations, typically as a tight cluster of fanning fibrous needles that make up a seemingly solid mass. As layers continue to stack during formation, banded patterns can sometimes begin to take shape, explaining the rings in all shades of green seen on most polished malachite specimens.

Malachite results from the weathering of other copper ores, and is very often found associated with other copper-based minerals such as azurite and chrysocolla. It can be found in copper deposits around the world, but the Democratic Republic of the Congo is the primary source for polished malachite and mineral specimens.

Malachite has been prized since ancient times, first as a utilitarian copper ore, then as an ornamental stone. Due to its value as a decorative stone, it is rarely mined as a copper ore anymore.

Malbunka Copper Mine, Northern Territory, Australia
Entire specimen 4.3 x 2.5"