Phonolite vs Variolite

Phonolite vs Variolite 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 Variolite Reserves. Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. 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 Variolite information and Phonolite vs Variolite characteristics in the upcoming sections.

Phonolite vs Variolite 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 Variolite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Phonolite and Properties of Variolite. Learn more about Phonolite vs Variolite in the next section. The interior uses of Phonolite include Countertops, Decorative aggregates, Flooring and Homes whereas the interior uses of Variolite include Floor tiles, Flooring, Homes, Hotels and Kitchens. Due to some exceptional properties of Phonolite and Variolite, 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 Variolite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Phonolite and Variolite

Here you can know more about Phonolite and Variolite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Phonolite and Variolite 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 Variolite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Phonolite vs Variolite, 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, Variolite is available in black, brown, light to dark grey colors. Appearance of Phonolite is Banded and Foilated and that of Variolite is Dull and Soft. Properties of rock is another aspect for Phonolite vs Variolite. The hardness of Phonolite is 5.5-6 and that of Variolite is 6. The types of Phonolite are Kenyte whereas types of Variolite are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Phonolite is white while that of Variolite is white to grey. The specific heat capacity of Phonolite is 0.84 kJ/Kg K and that of Variolite is 0.84 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 Variolite is heat resistant, pressure resistant, wear resistant.