Phonolite vs Obsidian

Phonolite 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 Phonolite and Obsidian Reserves. Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. 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 Phonolite vs Obsidian information and Phonolite vs Obsidian characteristics in the upcoming sections.

Phonolite 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. Phonolite vs Obsidian characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Phonolite and Properties of Obsidian. Learn more about Phonolite vs Obsidian in the next section. The interior uses of Phonolite include Countertops, Decorative aggregates, Flooring and Homes whereas the interior uses of Obsidian include Decorative aggregates and Interior decoration. Due to some exceptional properties of Phonolite and Obsidian, they have various applications in construction industry. The uses of Phonolite in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics and that of Obsidian include Arrowheads, Cutting tool, Knives, Scrapers, Spear points.

More about Phonolite and Obsidian

Here you can know more about Phonolite and Obsidian. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Phonolite and Obsidian consists of mineral content and compound content. The mineral content of Phonolite includes Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite and mineral content of Obsidian includes . You can also check out the list of all Igneous Rocks. When we have to compare Phonolite vs Obsidian, the texture, color and appearance plays an important role in determining the type of rock. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas, Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. Appearance of Phonolite is Banded and Foilated and that of Obsidian is Shiny. Properties of rock is another aspect for Phonolite vs Obsidian. The hardness of Phonolite is 5.5-6 and that of Obsidian is 5-5.5. The types of Phonolite are Kenyte 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 Phonolite and Obsidian is white. The specific heat capacity of Phonolite is 0.84 kJ/Kg K 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.Phonolite is heat resistant, impact resistant, wear resistant whereas Obsidian is heat resistant, impact resistant.