Quartz Cluster

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 376.6 Hz, 69 cents flat of G4, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to light the crystal points one by one. Hands-on: snap a point off, put it back.

Quartz is one of the most common minerals in the Earth's crust, made of silicon and oxygen. Its crystals grow as six-sided columns with pointed tips, often many together in a cluster like this one. Clear quartz is also called rock crystal.

Tap it and the ten points light up one by one, from left to right, each glowing from inside with a glint at its tip and a rising chime. A tiny sliver of quartz shakes at a very steady beat when electricity runs through it, so it keeps time in many watches and clocks. With ✋ Hands-on on, snap one of the big points off the rock, then bring it back to its place: it clicks in again.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.