Sorry it takes me some time,
There might have been translation mistakes and it is not a word by word translation.
So here it is :
Maurice :
Grenat is an semi precious stone, grenat has a dodecaedron shape. The angle of grenat penetrate into steel no more than 1 or 2 microns. For an artificial hone, it is different, the particles act as pins and penetrate deeply into steel.
In a vein, grenats have a size of 5 microns whereas in others maybe 15 to 20 microns. And a grenat of 5 microns is finer than one of 15 microns
Woman speaker:
Coticule stone comes from this quarry in Lerneux and is extracted since 1865. Nowadays, 6 persons work at Ardennes-Coticule
Francis:
It's a pride for our village. When I'm asked about my job, I answear I make the coticule stone which is unique in the world
Speaker
Coticule is extracted with a schist backing. if it gets damaged during it's preparation, it is replaced by another one and glued. The goal of cutting and processing is to get the more pecfect coticule: that is without cracks.
Francis:
Crack or quartz prevent the sharpening of the blade. Cracks damage the edge and quartz scratches the blade. If a coticule stone contains cracks, it is not possible to make rectangular hones with it and we have to make bouts so we have a financial loss
Speaker
Mauris Celis is from Limbourg. This former mining engineer took back the exploitation in 1968. Nowadays he succeeds in valuing all which goes out of the quarry. The production of the coticule is in increase. Thanks to internet 90 % of the production is exported.
Maurice
it is noticed everywhere that the young people, the 30-year-old men begin again to shave with a straight razor. They are a members of internet forums.
They discuss, they discuss, it is enormous! And there, you enter the sector of the hobby. And it is well known that when one buys something for his hobby he spend more money or more easily money.
Speaker
The formation of the coticule goes back up to 485 million years. It is found only here in Lierneux where 10 tons are extracted in a year. Nowadays it still remains the best hone in the world