Contained

A crystal garden that could only grow because something held the walls — beauty made possible by a boundary.

Agate Geode · The Law of Parameter

Family: Chalcedony (SiO₂) banding around a quartz-lined cavity
Hardness: 6.5–7 on the Mohs scale
Colour: Banded browns, whites and greys with a clear or amethyst centre
Signature: Concentric bands laid down one at a time against the inside of the shell

The stone read as the word

A geode begins as a bubble in lava or a hollow in sediment. Silica-rich water seeps in and, because the pocket holds, layer after layer settles against the wall until crystals grow inward into open space. Break the shell early and there is no gem — only a wet hole.

Every band in a geode is a record of a limit respected. The parameter did not restrict the stone; it is the only reason there is a stone.

What it is carried for

Carried as the stone of the boundary that makes growth possible.
Held for patience — bands are laid one at a time and cannot be hurried.
Kept for interior wealth that is not visible from outside.