Volcanoes are ranked as one of the most devastating and awe-inspiring phenomena on the planet. But these fiery cracks do more than just destroy. They also create.
In a new study, Russian researchers have found one such creation, a rare mineral that has never been recorded by scientists, a fascinating, vibrant blue and green that the team called petrovite. We are reporting the discovery of crystallized substances.
This mineral was found in the volcanic landscape of the Russian Far East at the top of Tolbachik volcano on the Kamchatka Peninsula.
The history of the Tolbachik eruption dates back thousands of years, but more recently, the 1975-1976 “Tolbachik Fissure Eruption” and the second lesser follow-up between 2012 and 2013. Two notable events stand out.
The forces of the eruption during the first event tore through numerous volcanic hills and opened rocky terrain found to be a rich vein of fumarolic deposits and a unique mineral. I did.
In total, Tolbachik volcano claims 130 type-producing minerals first identified here. The latest is a sulphate mineral that forms as a blue spherical aggregate of plate crystals, many of which retain gaseous inclusions.
The specimens studied here were discovered in 2000 near the second volcanic hill associated with the 1975 eruption and were stored for later analysis. It may have been a while, but the analysis revealed that this bright blue mineral exhibits unique molecular features that were rarely seen before.
The copper atom in the petrovite crystal structure has an anomalous and very rare coordination of seven oxygen atoms, “explains Stanislav Firatov, a principal investigator and crystallographer at St. Petersburg University.
“Such coordination is characteristic of some compounds, not just saranquinite.”
Salankinite, identified by another St. Petersburg team a few years ago, was also found on Mount Tolbachik. Like petrovite, it is surprisingly colored in itself.
In the case of petrovite, the minerals that are thought to crystallize by direct precipitation from volcanic gas are formed as a blue cryptocrystalline crust that encloses fine pyroclastic materials.
At the chemical level, petrovite represents a new type of crystal structure, but hypothetically similar to the saranquinite that can be produced from it.
In particular, the petrovite molecular framework, which consists of oxygen atoms, sodium-sulfur, and copper, is effectively porous in nature and shows interconnect pathways that allow sodium ions to move within the structure. ..
Because of its behavior, and if the framework can be replicated in the lab, the team could lead to important applications in materials science, enabling new ways to develop cathodes for use in batteries and electrical devices. I think there is.
“Currently, the biggest problem with this application is the small amount of transition metal (copper) in the crystal structure of minerals,” says Filatov.
“It may be possible to solve this by synthesizing a compound with the same structure as petrovite in the laboratory.”
Survey results will be reported at Mineralogy Magazine..
This article was originally published by ScienceAlert..Read the original article here..
Scientists discover new exotic minerals forged in Russian volcanic furnaces
Source link Scientists discover new exotic minerals forged in Russian volcanic furnaces