The Tarbes worked stone disk

A small disk of shaped stone fell at Tarbes, France, on 20 June 1887. The French Academy's examiners found it was gypsum and had without doubt been worked.

Charles Fort records in The Book of the Damned that a worked stone disk fell from the sky at Tarbes on 20 June 1887.

The report to the French Academy of Sciences has more. The person who picked the object up brought it to the examiners and asked them not to damage it. It was a white, milky-looking stone disk. A knife or a fingernail would scratch it, acids did not affect it, and its density was 2.3. It was gypsum, and the examiners wrote that it had without doubt been shaped. Their explanation was that a whirlwind had lifted the stone off the ground into a storm cloud, where the hail formed.