Iridescent Aragonite
Aragonite
What is Iridescent Aragonite?
Iridescent Aragonite is a variety of the mineral aragonite that exhibits a play of color, similar to that seen in opals or mother-of-pearl. This iridescence is caused by the interference of light within thin layers or films of impurities or structural variations within the aragonite crystal structure. The effect can produce a shimmering, rainbow-like display of colors across the surface of the stone. The stone is often found in botryoidal (grape-like) formations or as stalactitic growths.
Optical Properties
- Refractive Index
- 1.530 - 1.686
- Birefringence
- 0.154
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.018
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Iridescent Aragonite 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.
Iridescent Aragonite Localities Map
See where Iridescent Aragonite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- White, yellow, green, blue, brown, with iridescent play of color
- Hardness (Mohs)
- 3.5 - 4
- Density
- 2.93 - 2.95 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- CaCO3
- Elements
- Calcium, Carbon, Oxygen
Also Known As
Identify Iridescent Aragonite Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you
Iridescent Aragonite FAQs
How do I identify Iridescent Aragonite?
Iridescent Aragonite can be identified by its hardness of 3.5 - 4 on the Mohs scale, White color. Look for these key characteristics when examining specimens.
What color is Iridescent Aragonite?
Iridescent Aragonite typically appears in White, yellow, green, blue, brown, with iridescent play of color. Color can vary depending on impurities and formation conditions.
How hard is Iridescent Aragonite?
Iridescent Aragonite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.