A collection

Of collagenous

Calcium phosphate

Encapsulated in epidermis

A treasure above

A collection

Of broken

Grains of quartz

Envelopes the lithosphere

A treasure beneath

Extensive

Descent

Two

Soft

Exteriors

Meet

Embraced by silt

One

Treasure

Completes

The other

Embraced by silt

Dowry

For

The

Earth