I just re measured more carefully than first rough one with ruler. Using a 6 inch dial caliper with resolution to 0.001" I got
5.952 in (15.1181 cm) long by
1.975 in (5.0165 cm) wide by
0.485 in (5.0165 cm)
= 93.425 cm cubed.
I put a calibration mass on a 200x0.01 g digital balance, then measured the stone at 179.99 g.
This amounts to 1.926 g / cm^3. Way below what a hard ark would be.
Its been a long time but I remember it was black when I got it and its dull black now. Is there such a critter as black soft - black Washita ?
Attachment 240970Attachment 240971 The 1st pick is in sink next to BBW. The 2nd pick is in sunlight with a couple drops of Smith's on it.