Olivenite
A variety of Olivenite Group
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.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Olivenite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Olivenite Localities Map
See where Olivenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Health & Safety Information
- ⚠️Olivenite dust is toxic because it contains heavy metals Copper.
- ⚠️It's advisable to handle olivenite carefully to avoid generating dust and wash hands thoroughly afterward. When cutting or polishing olivenite, wear a dust mask to prevent inhaling heavy metal particles. Store olivenite in a sealed container in a well-ventilated area, away from children and pets. For those involved in crystal healing, never put it in your mouth.
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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
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Olivenite FAQs
How do I identify Olivenite?
Olivenite can be identified by its hardness of 3 on the Mohs scale, Olive green to yellow color, Pearly, Resinous, Silky, Sub-vitreous, Sub-adamantine luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.
What color is Olivenite?
Olivenite typically appears in Olive green to yellow, brown, gray-green, grayish white, light green in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Olivenite?
Olivenite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
