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Onyx: is a banded variety of the mineral chalcedony, which is a cryptocrystalline form of silica.
While commercially known as "Onyx," it is often referred to by geologists as "banded calcite".
It is frequently used for decorative items like eggs, paperweights, and other polished objects due to its distinctive banding and color variations.
This egg weighs a hefty 10oz
Banded Onyx/calcite egg. UV reactive.
$30.00
Sale price
$30.00
Regular price