Where is Cat's Eye Chrysoberyl found?
Chrysoberyl (variety Cymophane)
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Open the appCat's Eye Chrysoberyl 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 Cat's Eye Chrysoberyl
Sri Lanka (Ceylon)
Historically the most important source, particularly for fine quality, honey-colored cat's eye chrysoberyl. Found in gem gravels.
Brazil
Minas Gerais state is a significant producer, yielding good quality material.
India
Known for producing cat's eye chrysoberyl, particularly in the southern states.
Madagascar
Emerging source for chrysoberyl, including cat's eye varieties.
Tanzania
Produces chrysoberyl, sometimes with chatoyancy.
Russia (Ural Mountains)
Historically known for chrysoberyl, including some cat's eye material.
Collecting tips
- Look in Pegmatites. Search for chrysoberyl in granitic pegmatite dikes, especially those associated with mica schists.
- Check Alluvial Deposits. Due to its hardness and density, chrysoberyl often accumulates in placer deposits (riverbeds, ancient stream channels). Look for heavy mineral concentrations.
- Examine Host Rocks. Identify areas with known chrysoberyl occurrences. Look for associated minerals like quartz, feldspar, mica, and garnet.
- Use a Loupe. When examining rough material, use a loupe to look for the characteristic fibrous inclusions that cause chatoyancy. The effect is best seen under a single light source.
- Test Hardness. Chrysoberyl is very hard (8.5 Mohs). This can help distinguish it from softer minerals with similar appearances.
Quick Check
- Color:
- Honey-yellow to yellowish-green
- Luster:
- Vitreous to greasy
- Streak:
- White
Explore Cat's Eye Chrysoberyl
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