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trigonalcommonSilicates
Jasper
SiO2
The image displays a large, transparent to translucent, colorless to white rhombohedral crystal with distinct cleavage planes, characteristic of calcite.
Jasper Physical Properties
Mohs Hardness
6.5Crystal System
trigonalLuster
dullStreak Color
whiteCleavage
noneFracture
conchoidalSpecific Gravity
2.58Colors
red, yellow, brown, green, blue, black, multicoloredTransparency
opaqueType Locality
Worldwide (e.g., India, Russia, USA, Egypt, Australia, Brazil)Mineral Group
SilicatesUses
jewelry, ornamental stone, carving materialAssociated Minerals
quartz, chalcedony, agate, chertRarity
commonGeological Context
Jasper is a microcrystalline variety of quartz that forms in various geological environments, often as a primary precipitate or a replacement material in sedimentary or volcanic rocks. It is commonly found in hydrothermal veins and as infillings.
