Wolf Tooth Necklace – Natural Stone Black And Ice Obsidian Pendant Necklace. High Quality. Free shipping 👈
- Item Type: Necklace
- Chain Type: Rope Chain
- Necklace Type: Pendant Necklace
- Material: Zinc Alloy, Stone
- Chain Length: 70 cm / 27.56 inch
- Pendant Length: 6.1 cm / 2.4 inch
- Package Dimensions: 20 x 20 x 5 cm / 7.87 x 7.87 x 1.97 inch
- Package Weight: 0.03 kg / 0.07 lbs
- Package Includes: One Necklace
Information about obsidian, Materials to make this wolf tooth necklace. Obsidian What Is It?
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.
Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition (high silica content) causes a high viscosity which, upon rapid cooling, forms a natural glass from the lava. The inhibition of atomic diffusion through this highly viscous lava explains the lack of crystal growth. Obsidian is hard, brittle, and amorphous; it therefore fractures with very sharp edges. In the past it was used to manufacture cutting and piercing tools and it has been used experimentally as surgical scalpel blades.
Is obsidian toxic?
Obsidian is a volcanic mineral and not indefinitely stable over time. It forms at the surface of volcanic eruptions and is amorphous. This means it is not a rock with a defined crystal structure. Obsidian consists to more than 70% of SiO2 (silicon dioxide), it is very similar to normal glass or quartz (a more crystalline form of SiO2). A lot of organisms have a skeleton made up of SiO2, e.g. some marine sponges. Obsidian is not white or transparent (like glass) because some metal impurities get trapped in the SiO2 matrix during its formation. Predominantly these other metals are iron and magnesium.
SiO2 is a very inert material, experts don’t agree if Si is one of the essential elements we need or not. I don’t think it is toxic in itself. Obsidian is used in cardiac surgery according to the information I have. Most infections due to glass related injuries result from some contamination of the glass surface, rather than the glass itself. Glass, over time, gets expelled from the wound if the pieces are small enough.
Obsidian is a lot softer than stainless steel. Using Mohs’ scale of mineral hardness, obsidian would be 5 – 5.5, compared to stainless steel > 7 (diamond = 10). And stainless steel is a lot more durable, the breakdown of obsidian is accelerated by the presence of water. Obsidian might therefore not be a good replacement for stainless steel depending on your exact applications.