Yellow Jasper
A variety of Jasper
Uncommon
What is Yellow Jasper?
An opaque type of silica that owes its coloring to inner impurities, yellow Jasper has been a beloved carving material for millennia, used for anything from pendants to vases to ceremonial baskets. It is often used in conjunction with other gemstones or types of jasper to highlight its unique hues.
Optical Properties
- Refractive Index
- 1.54
- Birefringence
- 0.003-0.009
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Discover Values
Rarity
3.8out of 5.0
76%
Popularity
3.8out of 5.0
76%
Beauty
4.1out of 5.0
82%
Cultural Value
3.9out of 5.0
78%
Collection Value
4.1out of 5.0
82%
Yellow Jasper Market Value Calculator
Estimate the market value of Yellow Jasper using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Yellow Jasper Localities Map
See where Yellow 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: Yellow 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 Yellow Jasper?
Quick Facts
Physical Properties
- Color
- Yellow
- Hardness (Mohs)
- 6.5 - 7
- Density
- 2.58 - 2.65 g/cm³
- Streak
- White
- Luster
- Vitreous
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- Si, O
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