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World's most precious marble mined in a Tuscan mega quarry
DW (English)
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2/13/2025
The rare marble used by Michelangelo is mined in a huge Tuscan quarry where panels are cut from solid rock at an altitude of around 1,000 meters.
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00:00
At an elevation of 1,000 meters, one of the world's most precious materials is mined in Italy.
00:14
Only here can you find the finest marble.
00:18
It's exceptional quality was also revered by Renaissance sculptor Michelangelo.
00:35
A single block can cost over 10,000 euros, and producing fine marble slabs takes several days.
00:48
Italian marble has been mined in the Carrara region for over 2,000 years.
00:53
But it's in the Apuan Alps region that the most expensive marble in the world is extracted.
01:04
Geologist Daniele Mantovani and his team produce thousands of tons of it every year.
01:14
This is a statuario marble.
01:17
It's a statuario, you can recognize the statuario because not all the white is the same white.
01:24
This one, if you put against light, you see the light passing through it.
01:31
It's because of the grain, it's because of the background.
01:35
The region lies on Italy's western Mediterranean coast, and the mining rights belong to the company Enro.
01:43
It can take up to 20 hours for workers to cut a piece from the rock face using huge band saws.
01:50
Chainsaws are used for the horizontal cuts.
01:54
This is what creates the blocks, which need to be tipped over to transport them.
01:59
To do this, they place a cushion into the gap, which is inflated bit by bit.
02:04
Wedges are used to keep the gap open while the slab is pulled over.
02:08
This block weighs 120 tons.
02:11
Sometimes they break because the marble cracks along the veins, but the remaining pieces can still be used.
02:18
Geologists have to precisely map the different kinds of marble found on the mountain,
02:23
because customers can order from a variety of patterns.
02:28
According to the project or to the client, we need to have certain patterns,
02:33
we have to try to make the blocks the most suitable as possible for the commissions that we have.
02:40
So I'm here checking all the production process for the company.
02:45
Several times a day, the blocks are transported down the valley by truck.
02:49
It takes many hours to create tablets like these that decorate buildings, but more on that later.
02:56
At Onro's production facility, the blocks weighing up to 60 tons are first registered.
03:06
In the sawmill, they are cut into fine slabs.
03:09
This process alone can take 20 hours, from one morning to the next.
03:15
Gino Cinquini is the head of the sawmill, and for his job he needs not only a lot of patience, but also a lot of water.
03:24
One machine requires about 1,000 liters per minute or even more, but it's recycled water.
03:31
It's never used just once, it's in a cycle, it's water that gets cleaned and reused in a closed circuit.
03:43
Almost all the stone saws have industrial diamonds to make them harder than marble.
03:49
The next day, the cut slabs are polished. First, they receive a resin layer.
03:55
This is later sanded off, but the resin fills the marble's hairline cracks and makes it smooth.
04:01
They cost up to 300 euros per square meter and can be very thin, from several centimeters down to 5 millimeters.
04:09
Polishing is done with brushes, rubber and diamond tools.
04:13
There are different types of marble, white, black, red, green. You need to polish each one the right way.
04:22
The marble is then cut to the right shape for its purpose. These here are thin tiles.
04:30
The project's on-row supplies include mosques in Abu Dhabi, corporate headquarters in the US, and luxurious floor coverings.
04:44
In the final stages, the pieces are assembled based on their color patterns, to make sure they look their best once they're on display.
04:59
Paolo Carli is the head and owner of the 200-year-old company.
05:03
Does he worry that the marble mountain which his company owns might one day be completely gone?
05:14
No, we are talking about thousands of years. So our quarry at the Altissimo is just minimally extracted.
05:23
We are not massive consumers of blocks from our quarry.
05:28
White statuary marble is the core business of the company, embracing the times they've also invested in 3D technology
05:36
to create art sculptures, drawing on both their manual skills and robotics.
05:42
As part of their marketing strategy, the company has collaborated with renowned artists such as Hans Arp, Henry Moore, and Tony Craig.
05:51
Art helps us to develop our modern technology.
05:55
So today Enro is the only company that represents architectural design and art in every daily composition of our fabrication.
06:05
To nurture the next generation, the company partners with the local vocational school.
06:11
Students here are working on an eye, inspired by Michelangelo's David.
06:19
The sculptor also used marble from the region.
06:27
The miners here are still at the summit, but they're making their way down the marble mountain one block at a time.
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