Where is Tiger's Eye found?
Tiger's Eye (variety of Chalcedony, a cryptocrystalline form of Quartz)
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Open the appTiger's Eye occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Tiger's Eye
South Africa
The primary and most significant source, particularly in the Northern Cape Province, where vast deposits are found in the Griqualand West region. These deposits are associated with the Asbestos Hills and the Kuruman Iron Formation.
Australia
Significant deposits are found in Western Australia, particularly in the Hamersley Range, often associated with banded iron formations.
India
Smaller deposits are known in various regions.
Myanmar (Burma)
Some occurrences have been reported.
United States
Limited occurrences, primarily in Arizona and California.
Collecting tips
- Look for Metamorphic Terrains. Tiger's Eye is found in metamorphic rocks, particularly those associated with ancient iron formations and former asbestos deposits. Focus your search in areas known for such geology.
- Identify Fibrous Structures. Even in its raw form, look for a distinct fibrous texture. The chatoyancy might not be as pronounced until polished, but the parallel fibers are key.
- Check for Associated Minerals. Tiger's Eye often occurs with other minerals found in iron formations, such as hematite, magnetite, and various amphiboles. The presence of these can indicate a potential Tiger's Eye deposit.
- Safety Precautions (Crocidolite). Tiger's Eye is a pseudomorph after crocidolite, a form of asbestos. While the silica replacement generally renders it safe, handling raw, unpolished material, especially if friable or dusty, should be done with caution. Avoid inhaling dust. Always wear appropriate personal protective equipment (PPE), including a respirator, when collecting or processing raw material from known crocidolite-bearing areas. Polished Tiger's Eye is considered safe.
Quick Check
- Color:
- Golden-yellow to reddish-brown with iridescent bands.
- Luster:
- Silky, chatoyant.
- Streak:
- White
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