Olivenite

A variety of Olivenite Group

Rare
Olivenite specimen - rock identification

What is Olivenite?

Olivenite is readily found intermingled with other copper-rich minerals in copper deposit regions where oxidation has been abundant. It possesses a perfect density and sheen for polishing and cutting. When processed in that manner, it becomes the popular birthstone, Peridot. The existence of olivenite is reported from outer space: fragments of it have been found in meteors and it is likely present on asteroids.

Etymology & Origins

A characteristic feature, and one to which the name alludes (German, Olivenerz, of A. G. Werner, 1789), is the olive-green color, which varies in shade from blackish-green in the crystals to almost white in the finely fibrous variety known as woodcopper.

Uses & Applications

Olivenite is a minor source of copper in some places. Copper has a variety of applications, from making coins to conducting electricity to detecting sugar. However, the relative rarity of this mineral makes other more common ores preferential. Olivenite is also collected as a specimen.

Olivenite Market Value Calculator

Estimate the market value of Olivenite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

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Olivenite Localities Map

See where Olivenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Health & Safety Information

  • ⚠️Harm Reason: Olivenite dust is toxic because it contains heavy metals Copper.
  • ⚠️How to prevent the risks of Olivenite?

More Images

Olivenite specimen 2
© Tillman

Quick Facts

Physical Properties

Color
Olive green to yellow, brown, gray-green, grayish white, light green in transmitted light.
Hardness (Mohs)
3
Density
4.45 g/cm³
Streak
Olive green to brown
Luster
Pearly, Resinous, Silky, Sub-vitreous, Sub-adamantine
Crystal System
Monoclinic

Chemical Properties

Chemical Formula
Cu2(AsO4)(OH)
Elements
As, Cu, H, O

Also Known As

OlivenitePharmacochalciteAcicular Arseniate of CopperOlive-Green Copper OrePharmacochalzite
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