Porphyry vs Obsidian

Porphyry 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 Porphyry and Obsidian Reserves. Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. 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 Porphyry vs Obsidian information and Porphyry vs Obsidian characteristics in the upcoming sections.

Porphyry 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. Porphyry vs Obsidian characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Porphyry and Properties of Obsidian. Learn more about Porphyry vs Obsidian in the next section. The interior uses of Porphyry include Decorative aggregates and Interior decoration whereas the interior uses of Obsidian include Decorative aggregates and Interior decoration. Due to some exceptional properties of Porphyry and Obsidian, they have various applications in construction industry. The uses of Porphyry in construction industry include Construction aggregate and that of Obsidian include Arrowheads, Cutting tool, Knives, Scrapers, Spear points.

More about Porphyry and Obsidian

Here you can know more about Porphyry and Obsidian. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Porphyry and Obsidian consists of mineral content and compound content. The mineral content of Porphyry includes Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica and mineral content of Obsidian is not available. You can also check out the list of all Igneous Rocks. When we have to compare Porphyry vs Obsidian, the texture, color and appearance plays an important role in determining the type of rock. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas, Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. Appearance of Porphyry is Dull and that of Obsidian is Shiny. Properties of rock is another aspect for Porphyry vs Obsidian. The hardness of Porphyry is 6-7 and that of Obsidian is 5-5.5. The types of Porphyry are Rhomb Porphyry 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 Porphyry and Obsidian is white. The specific heat capacity of Porphyry 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.Porphyry is heat resistant, impact resistant whereas Obsidian is heat resistant, impact resistant.