sedimentary
Dragons Blood Jasper
Cryptocrystalline Quartz (SiO2/Epidote/Piemontite)
Hardness: 6.5-7 (Mohs); Color: Mottled green with red patches or veins; Luster: Vitreous to waxy (when polished); Crystal Structure: Hexagonal (trigonal); Specific Gravity: 2.6-2.9
- Hardness
- 6
- Color
- Mottled green with red patches or veins
- Luster
- Vitreous to waxy (when polished)
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Physical properties
Hardness: 6.5-7 (Mohs); Color: Mottled green with red patches or veins; Luster: Vitreous to waxy (when polished); Crystal Structure: Hexagonal (trigonal); Specific Gravity: 2.6-2.9
Formation & geological history
Formed through the accumulation of silica-rich sediments where iron oxides and epidote minerals infuse the quartz matrix. Often found in South Africa and Australia, originating millions of years ago in volcanic-sedimentary environments.
Uses & applications
Primarily used for lapidary arts, decorative items, jewelry (cabochons and beads), and as a popular palm stone for crystal collectors.
Geological facts
Despite the name 'Jasper', it is chemically a member of the chalcedony family featuring unique inclusions of green epidote and red piemontite. In folklore, it was believed to be the remains of ancient dragons.
Field identification & locations
Identified by its distinctive combination of olive-green and deep red 'veining' or 'fractures'. It is commonly found in riverbeds or mining sites in the Limpopo region of South Africa. Collectors look for high contrast between the green and red colors.
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