metamorphic
Tiger Iron
Composite rock (Quartz, Tiger's Eye, Hematite, and Jasper)
Hardness of 6.5 to 7 on the Mohs scale; distinctive metallic and silky luster; displays alternating bands of silvery-gray hematite, red-brown jasper, and golden-brown chatoyant tiger's eye; opaque; specific gravity around 2.65 to 3.1.
Identified More metamorphic →
Explore Tiger Iron in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5 to 7 on the Mohs scale; distinctive metallic and silky luster; displays alternating bands of silvery-gray hematite, red-brown jasper, and golden-brown chatoyant tiger's eye; opaque; specific gravity around 2.65 to 3.1.
Formation & geological history
Formed through the metamorphism and silicification of banded iron formations (BIFs) over 2 billion years ago, where layers of iron oxides and silica underwent extreme pressure and heat.
Uses & applications
Used primarily for ornamental carvings, polished cabochons in jewelry, spheres, and as a collector's mineral specimen.
Geological facts
Tiger Iron is a combination rock that blends the grounding properties of hematite, the vitality of red jasper, and the focus of tiger's eye, making it a unique geological composite.
Field identification & locations
Easily identified by its striking metallic banding alternating with golden and reddish-brown layers. Primarily mined in Western Australia (Pilbara region) and South Africa.
More like this
