Right? Leave it to the French to think “We’re doing this 100% authentic!” and mean how they dress for it.
For what it’s worth, I’ve made some natron bricks from dirt in the yard (natron you can make by cooking baking soda) just to see what I would get. Seemed like regular dirt at first, then after a week, they were shockingly solid. I expect with limestone gravel, it would work even better.
Right? Leave it to the French to think “We’re doing this 100% authentic!” and mean how they dress for it.
For what it’s worth, I’ve made some natron bricks from dirt in the yard (natron you can make by cooking baking soda) just to see what I would get. Seemed like regular dirt at first, then after a week, they were shockingly solid. I expect with limestone gravel, it would work even better.