Poppy Jasper
A variety of Brecciated Jasper
Uncommon
What is Poppy Jasper?
Poppy Jasper is a trading name for a rare variety of jasper mined in Santa Clara County, California, USA. Also called orbicular jasper, this stone is known for its yellow, red, green, and brown orbicular patterns, created by inclusions of quartz. Poppy Jasper is used as an ornamental stone.
Optical Properties
- Refractive Index
- 1.54
- Birefringence
- 0.003-0.009
- Pleochroism
- None
- Optical Character
- Biaxial positive
Poppy Jasper Market Value Calculator
Estimate the market value of Poppy Jasper using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Poppy Jasper Localities Map
See where Poppy 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: Poppy 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 Poppy Jasper?
Quick Facts
Physical Properties
- Color
- Red, yellow, brown, black
- 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
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