King Cobra Jasper
A variety of Jasper
What is King Cobra Jasper?
Mainly found in India, King Cobra Jasper is said to be named after the cobra snake endemic to the area where these gems are found, as well as a similarity in colors. The crystals contained within this Chalcedony gem cannot be seen by the naked human eye, making them microcrystalline in nature.
Optical Properties
- Refractive Index
- 1.54
- Birefringence
- 0.003-0.009
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge King Cobra 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.
Where to Find King Cobra Jasper
King Cobra Jasper is a variety of Jasper. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find jasper in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find jasperAlways check the local rules and get the landowner's permission before you collect.
Health & Safety Information
- ⚠️King Cobra 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.
- ⚠️King Cobra 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 king Cobra Jasper, be sure to wear a dust mask to avoid inhaling its dust.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 6.5 - 7
- Rock tumbling
- Tumbles well
- 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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King Cobra Jasper FAQs
How do I identify King Cobra Jasper?
King Cobra Jasper can be identified by its hardness of 6.5 - 7 on the Mohs scale, Vitreous luster, Trigonal crystal system. Look for these key characteristics when examining specimens.
How hard is King Cobra Jasper?
King Cobra Jasper has a hardness of 6.5 - 7 on the Mohs scale. This gives it moderate hardness.