Skip to product information
1 of 9

Terebra Shell Set

Terebra Shell Set

2 total reviews



A set of 2 shells: one whole and one sliced

These shells were once home to a sea snail called Turritella terebra, native to the Indo-Pacific.

The shell has a long tower-like shape which resembles a drill, hence its name which translates to towered drill. We’ve included a whole shell as well as a cutaway shell so the interior geometry is visible.

Shells begin at the larva stage with a protoconch, a tiny— sometimes microscopic—version of the shell. At this point the chirality, which way the shell will spiral, is already determined. The mollusk converts minerals in the ocean into calcium carbonate and excrete them to construct the shell as it grows.

More than 90% of mollusk shells are right handed and left-handed shells are sought by collectors. If you hold the shell with the point upward, turn the shell until the opening at the bottom points at you. If the opening is on the right side of the shell, it is right handed.

The Smithsonian currently has the world’s largest mollusk shell collection, consisting of nearly 20 million shells.



    Regular price $1.50
    Regular price Sale price $1.50
    Sale Sold out
    Shipping calculated at checkout.
    Matter Subscriber Price:


    View full details

    Customer Reviews

    Based on 2 reviews
    100%
    (2)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    A
    Anonymous (Georgia, United States)
    Teresa shell

    Love it. So cool.

    J
    J.G. (Minnesota, United States)
    Awesome!

    Pretty neat the kids really enjoyed them as well!

    AUTHENTICITY GUARANTEED

    We only list 100% verified authentic items. We work with reputable collectors, and regularly consult with our network of scientists and experts.

    • Free Shipping

      Orders ≥$50 qualify for free US shipping
      Orders ≥$100 qualify for free global shipping

    • Secure Payments

      Pay how you like: credit card, PayPal, After Pay, Shop Pay, Venmo, Apple/Google/Meta Pay & crypto

    • Simple Returns

      Change your mind? No problem. Enjoy easy returns within 30 days.

    similar items_

    WE TAKE SCIENCE SERIOUSLY

    You deserve better than craft store science products. And we think learning is more impactful when you're holding a tangible piece of what you're learning about. That's why Stemcell exists.

    We're dedicated to providing the best scientific products available—whether they're fragments of scientific importance, experimental activities, or just interesting things that scratch your curiosity itch.

    With every new product launch, our list of new ideas gets longer rather than shorter. So check in often for our latest projects, and thanks for being a part of our endeavor to make the world a smarter place to live.

    Believe in yourself; for everything else, there's science.

    — TERRY MUDGE, FOUNDER & SCIENTIFIC DIRECTOR