Olivine crystal found on Mars, the precious stone that expels the La Palma volcano


In its third sample of material on Mars, Perseverance has collected olivine crystal, a curious material that has been in the news these weeks as a result of its appearance on the La Palma volcano.

But, What exactly is olivine crystal? What are its characteristics? It is a light green semi-precious stone with volcanic origin. That is why it has been common to find this mineral after the eruption.

In the world of metallurgy It is used as a conditioner for slag, refractory and cast iron. It is also used as a fertilizer, since it provides magnesium and iron as nutrients to the soil. It is also used on tiles, as the light color of the powder also allows it to be used as a filler in specialty paints, asphalt, putties and tile formulations. And also in jewelry, as refractory sand and geological indicator.

Currently, the mineral olivine is known to be the main element of the upper mantle, like the peridotites, and that is why their finding is so relevant. Olivine crystal as a semi-precious stone is often used to make jewelry and costume jewelery, such as necklaces or bracelets.

In addition, the olivine crystal it tends to crystallize at great depths and would also be an indicator of temperature and depth; As for the temperature, it could crystallize at 900 degrees Celsius.

It is not easy to estimate the price of olivine crystals due to the different factors that come into play. “It essentially depends on the purity of the stone, being able to oscillate between 50 and 500 euros per carat“, he pointed Alberto Canosci, responsible for the marketing department for Volcanic Jewelry, a brand specialized in jewelry creations with volcanic stones, in an interview in El Mundo

“The colour of the stone and the transparency they are essential aspects to be analyzed by expert gemologists to determine its purity “, Canosci details. The more alive the olive green, the more expensive the olivine piece will be. In addition, depending on its quality, different types of carved and montages, they add from the jewelry belonging to the Canary Islands Luxury company. Various peridot valuation reports are available on Gemval.com, a platform specialized in the appraisal of gemstones. The most expensive stone on the list reaches 900 euros.

70 days of eruption

The Cumbre Vieja volcano eruption It was this Saturday, November 27, 70 days since the lava came out on September 17. In the last hours, the Cabildo of La Palma has reported that it will not be possible to access by sea or land through the southern area of ​​the Aridane Valley due to the unfavorable air quality, although access through the north is open. These measures may vary according to weather conditions and the evolution of the eruptive process, so the Cabildo asks the population to inform themselves through official sources.

The National Geographic Institute (IGN) reports a terrain elevation of 6 centimeters at the station closest to the La Palma volcano cone, between the 24th and 26th.

In the rest of the stations the slight deflation observed has stabilized and that it is possibly related to deep seismicity, except in one of them, which continues to register it.

The latest IGN report specifies that the volcanic tremor signal continues at lower medium levels, although with fluctuations.

And it counts 74 earthquakes in the last 24 hours, of which 15 located at depths between 10 and 15 kilometers, and the rest, beyond 30 kilometers.

The measurement made this Saturday of the column of smoke and ash places it at an altitude of 1,700 meters, with a southwest direction. As for the height of the cone, the last measurement places it at 1,127 meters above sea level.

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