Seashells are abundant along coastlines, originating from mollusks that construct exoskeletons for protection. Comprised mainly of calcium carbonate, these shells possess enduring qualities that make ...
The Philadelphia-based designer shares a bird’s-eye view of her favorite swatches, samples and more.
Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...
Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges ...