Definition
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
Discoverer
Unknown
Unknown
Etymology
From Greek mulōn mill + -ite
From pyroxene mineral jadeite
Class
Metamorphic Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Color
Black to Grey
Black, Brown, Green, Grey, White
Durability
Durable
Durable
Appearance
Dull, Banded and Foilated
Rough and Dull
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
Curbing
Curbing
Construction Industry
for Road Aggregate, Landscaping, Roadstone
As Dimension Stone, Cutting Tool, Knives
Antiquity Uses
Artifacts, Monuments
Artifacts, Jewellery, Monuments, Sculpture
Commercial Uses
Creating Artwork, Gemstone, Jewelry
Commemorative Tablets, Creating Artwork, Jewelry
Types
Blastomylonites, Ultramylonites and Phyllonites
Metamorphic rock
Features
Surfaces are often shiny
Host Rock for Lead
Archaeological Significance
Formation
Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Mineral Content
Porphyroblasts
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Compound Content
Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Types of Metamorphism
-
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
-
Types of Erosion
Chemical Erosion, Sea Erosion, Wind Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Grain Size
Fine Grained
Very fine-grained
Fracture
Conchoidal
Uneven
Streak
White
White, Greenish White or Grey
Porosity
Highly Porous
Less Porous
Luster
Shiny
Waxy and Dull
Specific Gravity
2.97-3.05
2.79-3
Transparency
Opaque
Opaque
Density
2.6-4.8 g/cm3
2.5-3 g/cm3
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Water Resistant
Deposits in Eastern Continents
Asia
China, India, Indonesia, Saudi Arabia, South Korea
India, Saudi Arabia, Singapore, South Korea
Africa
Eritrea, Ethiopia, Ghana, South Africa, Western Africa
Ethiopia, Western Africa
Europe
England, Finland, France, Germany, Great Britain, Greece, United Kingdom
England, Georgia, Switzerland, United Kingdom
Deposits in Western Continents
Deposits in Oceania Continent
Australia
Central Australia, Western Australia
Central Australia, New South Wales, New Zealand, Western Australia
Mylonite vs Jadeitite 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. Mylonite vs Jadeitite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Mylonite and Properties of Jadeitite. Learn more about Mylonite vs Jadeitite in the next section. The interior uses of Mylonite include Decorative aggregates and Interior decoration whereas the interior uses of Jadeitite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Mylonite and Jadeitite, they have various applications in construction industry. The uses of Mylonite in construction industry include For road aggregate, Landscaping, Roadstone and that of Jadeitite include As dimension stone, Cutting tool, Knives.
More about Mylonite and Jadeitite
Here you can know more about Mylonite and Jadeitite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Mylonite and Jadeitite consists of mineral content and compound content. The mineral content of Mylonite includes Porphyroblasts and mineral content of Jadeitite includes Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides. You can also check out the list of all Metamorphic Rocks. When we have to compare Mylonite vs Jadeitite, the texture, color and appearance plays an important role in determining the type of rock. Mylonite is available in black to grey colors whereas, Jadeitite is available in black, brown, green, grey, white colors. Appearance of Mylonite is Dull, Banded and Foilated and that of Jadeitite is Rough and Dull. Properties of rock is another aspect for Mylonite vs Jadeitite. The hardness of Mylonite is 3-4 and that of Jadeitite is 3-5. The types of Mylonite are Blastomylonites, Ultramylonites and Phyllonites whereas types of Jadeitite are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Mylonite is white while that of Jadeitite is white, greenish white or grey. The specific heat capacity of Mylonite is 1.50 kJ/Kg K and that of Jadeitite is 0.95 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Mylonite is heat resistant, impact resistant, pressure resistant whereas Jadeitite is heat resistant, water resistant.