Geode: A spherical, often hollow, mineral-lined cavity in rock. When lava is brought rapidly to the surface, the reduced pressure causes gasses in the hot rock to expand and form cavities within the solidifying rock. Later, mineral-laden water moving through the rock may deposit new minerals in these cavities to form geodes.
Geodes commonly contain concentric layers of agate, a form of quartz made up of tiny crystals.
Features:
- 14k yellow gold
- genuine sapphire stones
Specs:
- sapphire: 0.8 ct
Every piece comes with an authenticity certificate and origin documentation.
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