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Chalcedony Crack Open Geode Approx. 3 Inches – Pack of 2
$7.61
Chalcedony Crack Open Geode Approx. 3 Inches – Pack of 2
10 in stock
Description
To crack your geode, place it inside a cloth bag or an old sock, lay it on a sidewalk, and tap gently but firmly with a hammer or mallet.
Breaking open a geode is fun and educational! Teachers, enhance your science unit with this motivational project for students.
Quantity:Â 2 Chalcedony Geodes Measuring Approx 2 to 3 Inches
Geodes are geological rock formations which occur in sedimentary and certain volcanic rocks. Geodes are essentially rock cavities or vugs with internal crystal formations or concentric banding. The exterior of the most common geodes is generally limestone or a related rock, while the interior contains quartz crystals and/or chalcedony deposits. Some geodes are completely filled with crystal, being solid all the way through.
- Sizes vary from 2 to 3 inches (60-70 mm).
- Crystallization and  the shape of each geode varies.Â
Ages 8 and up
Additional Information
| Weight | 0.227 kg |
|---|---|
| Manufacturer | Earth Exploration |
| UPC | '9138004966 |
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