Poppy Jasper
A variety of Brecciated Jasper
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
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Poppy Jasper 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.
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.
Health & Safety Information
- ⚠️Poppy Jasper in powdered form can be toxic due to its Crystalline Silica content.
- ⚠️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.
- ⚠️Poppy Jasper is typically non-toxic unless it's in powder form. Long-term exposure to finely ground powder may lead to silicosis. Therefore, when cutting or polishing poppy Jasper, be sure to wear a dust mask to avoid inhaling its dust.
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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Poppy Jasper FAQs
How do I identify Poppy Jasper?
Poppy Jasper can be identified by its hardness of 6.5 - 7 on the Mohs scale, Red color, Vitreous luster, Trigonal crystal system. Look for these key characteristics when examining specimens.
What color is Poppy Jasper?
Poppy Jasper typically appears in Red, yellow, brown, black. Color can vary depending on impurities and formation conditions.
How hard is Poppy Jasper?
Poppy Jasper has a hardness of 6.5 - 7 on the Mohs scale. This gives it moderate hardness.