Preseli Bluestone
A variety of Metamorphic
What is Preseli Bluestone?
Preseli Bluestone is a very rare and unique igneous stone, best known as the most common rock type in the famous Stonehenge assemble. Various tools, weapons, and other artifacts were also carved out of preseli Bluestone throughout history. Today, it is mostly carved into wands, spheres, and large cabochons.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Preseli Bluestone 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.
Preseli Bluestone Localities Map
See where Preseli Bluestone is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Blue-gray, green, black, white
- Hardness (Mohs)
- 6 - 7
- Density
- 2.6 - 3.6 g/cm³
Chemical Properties
- Chemical Formula
- n{(Ca, Na)(Mg, Fe, Al, Ti)(Si, Al)2O6} p{NaAlSi3O8} q{CaAl2Si2O8}
Also Known As
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Preseli Bluestone FAQs
How do I identify Preseli Bluestone?
Preseli Bluestone can be identified by its hardness of 6 - 7 on the Mohs scale, Blue-gray color. Look for these key characteristics when examining specimens.
What color is Preseli Bluestone?
Preseli Bluestone typically appears in Blue-gray, green, black, white. Color can vary depending on impurities and formation conditions.
How hard is Preseli Bluestone?
Preseli Bluestone has a hardness of 6 - 7 on the Mohs scale. This gives it moderate hardness.
