My son, Jacob, has always been a rock hound, and for his birthday we got a very nice rock tumbler, a Lortone QT66. I have never been too interested in rocks but found myself in charge of our inaugural tumble.

Rock tumbling takes time — we chose a basic timeline of four stages, each lasting a week, and each stage using ever finer grinding and polishing powders.

We used a premixed package of tumbling stones along with many additional ones, including agates, from Jacob’s collection.

After one week:

You can already see the edges smoothed down (unfortunately I didn’t photograph…

Howard M. Lewis Ship

Clojure developer at Walmart labs; Apache Tapestry is my past, and my future is not yet written.

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