What are oyster shells made of?

Answer Oyster shells are mostly of calcium carbonate, and because of this have extensive use on land for other purposes. People use oyster shells in gardens for the calcium carbonate, and feed them to bir... Read More »

Top Q&A For: What are oyster shells made of

What are mollusk shells made of?

While not all mollusks possess a shell (notable exceptions include squid, octopi and slugs), those that do secrete the shell from a specialized tissue called the mantle. The shell itself is a compo... Read More »

What are diatom test shells made of?

Diatom tests (the hard shell of the diatom, sometimes called testa, or testae) are composed of almost pure silica. Silica is silicon dioxide, which is written chemically as SiO2. Marine botanists... Read More »

In the poem She shells sea shells by the sea shore?

it's 'she sells sea shells by the sea shore', not 'she shells sea shells by the sea shore'.

What are camper shells?

Camper shells are rigid structural enclosures that can be installed over the rear bed of a pickup truck to provide storage or camping space. Most fit snug with the cab and rise to the same height, ... Read More »