Chrysocolla Chalcedony
A variety of Chalcedony
What is Chrysocolla Chalcedony?
The most expensive type of chalcedony, Chrysocolla Chalcedony is a very rare material that comes in a form of vivid blue-green stone. It is highly sought by collectors, mostly for its wonderful appearance, but also for its durability and hardness. The intense blue-green color comes from copper present in the material.
Optical Properties
- Refractive Index
- 1.530-1.543
- Birefringence
- 0.003-0.009
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Chrysocolla Chalcedony 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.
Where to Find Chrysocolla Chalcedony
Chrysocolla Chalcedony is a variety of Chalcedony. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find chalcedony in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find chalcedonyAlways check the local rules and get the landowner's permission before you collect.
Health & Safety Information
- ⚠️Chrysocolla Chalcedony dust is toxic because it contains heavy metals Copper.
- ⚠️Copper
- ⚠️Chrysocolla Chalcedony is safe to handle in its finished, polished state, but excessive exposure to its dust may lead to heavy metal poisoning. When cutting or polishing chrysocolla Chalcedony, wear a dust mask to minimize dust inhalation. Store it 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.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 6.5 - 7
- Rock tumbling
- With care
- Density
- 2 - 2.7 g/cm³
- Streak
- White
- Luster
- Waxy, Vitreous
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- Si, O
Also Known As
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Chrysocolla Chalcedony FAQs
How do I identify Chrysocolla Chalcedony?
Chrysocolla Chalcedony can be identified by its hardness of 6.5 - 7 on the Mohs scale, Waxy, Vitreous luster, Trigonal crystal system. Look for these key characteristics when examining specimens.
How hard is Chrysocolla Chalcedony?
Chrysocolla Chalcedony has a hardness of 6.5 - 7 on the Mohs scale. This gives it moderate hardness.