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About the Stone
Agate is fine-grained chalcedony laid down layer by layer inside a cavity in volcanic rock, and the bands you see are that sequence of deposition preserved. Each layer differs slightly in grain and trace content, giving the creams, greys and warm browns. Because no two cavities filled the same way, no pair repeats another.
- Family
Chalcedony (microcrystalline quartz)
- Hardness
6.5 - 7
- Note
Agate's banding is a record of deposition: silica-rich fluid entered a cavity in volcanic rock and laid down layer after layer of fine-grained chalcedony against the cavity wall, each layer differing slightly in trace content and grain size. No two slices repeat.
Product Details
- Stone type
Banded agate, undyed
- Finish
Polished cabochons, hand-set on hooks
- Availability
Handmade, ready to ship
- Care
Wash occasionally in cool soapy water and dry. Avoid harsh chemicals and strong heat.
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