Rhyolite is a fine-grained igneous rock which is rich in silica
From German Rhyolit, from Greek rhuax lava stream + lithos stone
Coarse Grained Rock, Opaque Rock
Aphanitic, Glassy, Porphyritic
Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens
As Building Stone, As Facing Stone, Paving Stone, Office Buildings
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives
Gemstone, Laboratory bench tops, Jewelry
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.
Acidic in nature, Available in lots of colors
Archaeological Significance
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion
Heat Resistant, Wear Resistant
Deposits in Eastern Continents
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Germany, Iceland, Ireland, Italy, Spain
Deposits in Western Continents
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Deposits in Oceania Continent
New Zealand, Queensland, Western Australia
Learn more about Properties of Rhyolite
What is Rhyolite? In this section, we will learn more about properties of Rhyolite i.e. physical and thermal properties. Physical properties of Rhyolite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Rhyolite is 140.00 N/mm2. Streak of Rhyolite is while its cleavage is . Luster of Rhyolite is earthy and its fracture is sub-conchoidal. Rhyolite is opaque in nature. Know all about Rhyolite, What is Rhyolite, its composition, features, facts and reserves in next sections.
Know about Composition of Rhyolite
What is Rhyolite composed of? Get to know about composition of Rhyolite here. Rhyolite definition gives information about the Formation of Rhyolite and its composition.The composition of Rhyolite can be further divided into mineral and compound content. The mineral content of Rhyolite rock includes Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz and The compound content of Rhyolite rock includes Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium. Almost all rocks undergo transformation process. Know all about Rhyolite rock in next section.