Red Jasper
Quartz var. Jasper · Semi-Precious Gemstone and Decorative Stone
Crystal System
Trigonal, massive or microcrystalline crystal habit
Mineral Group
Silicates (Tectosilicate subgroup)
Chemical Formula
SiO2
Formation Process
Sedimentary or hydrothermal precipitation of silica-rich fluids rich in iron oxides, occurring at low temperatures and pressures.
About This Crystal
A tumbled, opaque specimen exhibiting a warm, terracotta-red to brownish-red hue with a smooth, polished surface and subtle internal fractures or veining typical of microcrystalline quartz.
Physical Characteristics
Brick-red to brownish-red body color with a white streak, microcrystalline habit, lacks true cleavage with a conchoidal to uneven fracture, specific gravity of approximately 2.58 to 2.91, brittle tenacity, non-magnetic, and generally inert under ultraviolet light.
Optical Properties
Sub-vitreous to waxy luster, opaque transparency, singly or microcrystalline doubly refractive with no significant pleochroism or special optical phenomena.
Hardness & Durability
Origin Region
Found globally with notable deposits in India, Brazil, Russia, France, Germany, and the USA. Forms in sedimentary environments, hydrothermal veins, and volcanic ash deposits.
Hardness & Durability
Mohs hardness of 6.5 to 7, good toughness due to its microcrystalline structure, highly stable against common chemicals and normal heat, suitable for everyday jewelry wear.
Care & Maintenance
Can be easily cleaned with warm, soapy water and a soft cloth. Avoid harsh chemical cleaners and prolonged exposure to extreme heat, though it does not fade significantly in normal sunlight.
Rarity & Value
Common and widely available, highly affordable, with value determined mainly by the richness of the red color, lack of undesirable matrix inclusions, and overall size. Treatments are rare as it is abundant in its natural state.
Special Characteristics
Microcrystalline structure with uniform iron oxide coloration, often displaying natural web-like patterns or darker matrix inclusions.
Lore & History
Historically used by ancient civilizations including the Egyptians, Greeks, and Native Americans for talismans, seals, and weapons. In modern crystal healing, it is traditionally associated with the root chakra, representing grounding, vitality, and endurance.