Gneiss vs Obsidian

Gneiss vs Obsidian Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Gneiss and Obsidian Reserves. Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Gneiss vs Obsidian information and Gneiss vs Obsidian characteristics in the upcoming sections.

Gneiss vs Obsidian Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Gneiss vs Obsidian characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Gneiss and Properties of Obsidian. Learn more about Gneiss vs Obsidian in the next section. The interior uses of Gneiss include Countertops, Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Obsidian include Decorative aggregates and Interior decoration. Due to some exceptional properties of Gneiss and Obsidian, they have various applications in construction industry. The uses of Gneiss in construction industry include As dimension stone and that of Obsidian include Arrowheads, Cutting tool, Knives, Scrapers, Spear points.

More about Gneiss and Obsidian

Here you can know more about Gneiss and Obsidian. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Gneiss and Obsidian consists of mineral content and compound content. The mineral content of Gneiss includes Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas, Muscovite or Illite, Quartz, Quartzite, Silica, Zircon and mineral content of Obsidian is not available. You can also check out the list of all Metamorphic Rocks. When we have to compare Gneiss vs Obsidian, the texture, color and appearance plays an important role in determining the type of rock. Gneiss is available in black, brown, pink, red, white colors whereas, Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. Appearance of Gneiss is Foliated and that of Obsidian is Shiny. Properties of rock is another aspect for Gneiss vs Obsidian. The hardness of Gneiss is 7 and that of Obsidian is 5-5.5. The types of Gneiss are Augen Gneiss, Henderson Gneiss, Lewisian Gneiss, Archean and Proterozoic Gneiss. whereas types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Gneiss and Obsidian is white. The specific heat capacity of Gneiss is Not Available and that of Obsidian is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Gneiss is heat resistant, pressure resistant, scratch resistant, wear resistant whereas Obsidian is heat resistant, impact resistant.