Obidianos

Obidianos are a type of volcanic glass formed from extremely high-viscosity rhyolitic lava. The name "obidianos" is derived from the Spanish word for obsidian, which is a similar type of volcanic glass formed from rhyolitic lava. Obidianos are typically dark in color, ranging from black to dark brown, and have a smooth, glassy texture. They are often found in volcanic regions and are sometimes used in jewelry and decorative items due to their unique appearance.

The formation of obidianos is similar to that of obsidian. When rhyolitic magma is extruded from a volcano and cools rapidly, the lack of time for crystal formation results in a glassy texture. The high viscosity of rhyolitic lava contributes to the formation of obidianos, as it allows for the preservation of the glassy structure even after cooling.

Obidianos are not as common as obsidian, but they share many of the same properties and uses. They are often found in the same volcanic regions as obsidian and can be used in similar applications, such as in jewelry and decorative items. However, obidianos are less commonly used in tools and weapons due to their lower durability compared to obsidian.

In summary, obidianos are a type of volcanic glass formed from rhyolitic lava, similar to obsidian. They are dark in color, have a smooth, glassy texture, and are often found in volcanic regions. They are used in jewelry and decorative items due to their unique appearance, but are less commonly used in tools and weapons.