Obsidian vs Porphyry

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

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

More about Obsidian and Porphyry

Here you can know more about Obsidian and Porphyry. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Porphyry consists of mineral content and compound content. The mineral content of Obsidian is not available and mineral content of Porphyry includes Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica. You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Porphyry, the texture, color and appearance plays an important role in determining the type of rock. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors. Appearance of Obsidian is Shiny and that of Porphyry is Dull. Properties of rock is another aspect for Obsidian vs Porphyry. The hardness of Obsidian is 5-5.5 and that of Porphyry is 6-7. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Porphyry are Rhomb Porphyry. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian and Porphyry is white. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Porphyry is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Obsidian is heat resistant, impact resistant whereas Porphyry is heat resistant, impact resistant.