How Seashells Are Made

Reactions Science Videos | June 05, 2018

Learn more about CuriosityStream at https://curiositystream.com/reactions (CODE: reactions) If you know that seashells are made of basically the same stuff as chalk, you might have wondered why chalk is crumbly but seashells are super tough. This week on Reactions, we explain: The secret’s in the biochemistry.

Sources:

Mollusk Shell Formation: A Source of New Concepts for Understanding Biomineralization Processes

The formation and mineralization of mollusk shell.

How are seashells created? Or any other shell, such as a snail's or a turtle's?

Mystery solved: Why seashells’ mineral forms differently in seawater

How to Make a Seashell - Just Add Water!

4.3.1 The carbonate compensation
          
Bivalve shell structure and organic matrix

Structure, mechanics and function of the mollusc shell

Sidewalk Chalk and the Calcium Cycle

Blackboard Chalk Isn’t Chalk

Calcite vs Aragonite

Aragonite

Calcite

What are pearls and mother-of-pearl?

Mother of Pearl Secret Revealed

How Do Oysters Make Pearls?

Ever wonder why dogs sniff each others' butts? Or how Adderall works? Or whether it's OK to pee in the pool? We've got you covered: Reactions a web series about the chemistry that surrounds you every day.