Guest
It's been almost two years since I found the 50lbs fossil crab concretion and I was starting to feel confident in my crab prepping skills, so I decided to make a start on the best fossil crab I have found so far. It started off badly as I prepped the bottom of the crab first and had to start over again on the other side of the concretion. I was using a combination of an angle grinder and a chisel to remove the bulk of the rock but it was very slow going. Luckily, my large air scribe, the Motovator, arrived and made a HUGE difference. It removes about ten times as much rock as my other scribe does in the same time. The species is a Tumidocarcinus giganteus from the mid-Miocene, around 12-million-years-ago. People always ask what the value of this crab would be and the short answer is that the value is the labour you put in. Unprepped crabs aren't worth much - 95% of the value is in the hours you spend prepping it with specialised equipment. I use a variety of air scribes on
