How do I identify Ocean Jasper?

Ocean Jasper can be identified by its hardness of 6.5 - 7 on the Mohs scale, Green color, Vitreous luster, Trigonal crystal system. Look for these key characteristics when examining specimens.

What color is Ocean Jasper?

Ocean Jasper typically appears in Green, brown, cream, white, red, pink, yellow, etc.. Color can vary depending on impurities and formation conditions.

How hard is Ocean Jasper?

Ocean Jasper has a hardness of 6.5 - 7 on the Mohs scale. This gives it moderate hardness.

Ocean Jasper

A variety of Jasper

Rare

Ocean Jasper specimen - rock identification

What is Ocean Jasper?

Ocean Jasper is an unscientific trade name for a stone mined mainly in northwestern Madagascar. This material's marketing value lies in its multicolored patterns of swirls and orbs. It is not a true Jasper, but most likely a spherical variety of Chalcedony. The material can be easily polished, so it's often sold as tumbled stones or carved into ornamental objects.

Optical Properties

Refractive Index: 1.54
Birefringence: 0.003-0.009
Pleochroism: None
Optical Character: Biaxial positive
Dispersion: 0.013

Discover Values

Rarity

4.3out of 5.0

86%

Popularity

3.5out of 5.0

70%

Beauty

4.1out of 5.0

82%

Cultural Value

3.8out of 5.0

76%

Collection Value

4.2out of 5.0

84%

Ocean Jasper Market Value Calculator

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

Ocean Jasper Localities Map

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

Map preview

North ZoneCentral RidgeSouth Basin

Health & Safety Information

⚠️Harm Reason: Ocean Jasper in powdered form can be toxic due to its Crystalline Silica content.
⚠️Physical Toxicity: Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
⚠️How to prevent the risks of Ocean Jasper?

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Quick Facts

Physical Properties

Color: Green, brown, cream, white, red, pink, yellow, etc.
Hardness (Mohs): 6.5 - 7
Density: 2.5 - 2.6 g/cm³
Streak: White
Luster: Vitreous
Crystal System: Trigonal

Chemical Properties

Chemical Formula: SiO2
Elements: Si, O

Also Known As

Ocean JasperOcean Orbicular Jasper

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