Definition
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.
Discoverer
Unknown
Unknown
Etymology
From pseudo- + tachylite, a glassy rock generated by frictional heat within faults.
From pseudo- + tachylite, a glassy rock generated by frictional heat within faults.
Class
Metamorphic Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Color
Black, Brown, Green, Grey, Pink, White
Black, Brown, Green, Grey, Pink, White
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Dull and Soft
Dull and Soft
Interior Uses
Decorative Aggregates, Entryways, Interior Decoration
Decorative Aggregates, Entryways, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Building Stone, As Facing Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
Antiquity Uses
Artifacts, Monuments
Artifacts, Monuments
Commercial Uses
Creating Artwork, Gemstone
Creating Artwork, Gemstone
Types
Cataclastic rock
Cataclastic rock
Features
Host Rock for Lead
Host Rock for Lead
Archaeological Significance
Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Mineral Content
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides
Compound Content
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Grain Size
Very fine-grained
Very fine-grained
Streak
Light to dark brown
Light to dark brown
Porosity
Less Porous
Less Porous
Specific Gravity
2.46-2.86
2.46-2.86
Transparency
Transparent to Translucent
Transparent to Translucent
Density
2.7-2.9 g/cm3
2.7-2.9 g/cm3
Resistance
Heat Resistant
Heat Resistant
Deposits in Eastern Continents
Asia
South Korea
South Korea
Africa
Western Africa
Western Africa
Europe
Great Britain, Switzerland
Great Britain, Switzerland
Deposits in Western Continents
Deposits in Oceania Continent
Australia
Central Australia, Western Australia
Central Australia, Western Australia
All about Pseudotachylite and Pseudotachylite Properties
Know all about Pseudotachylite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Pseudotachylite and Pseudotachylite belong to Metamorphic Rocks.Texture of Pseudotachylite is Quench whereas that of Pseudotachylite is Quench. Pseudotachylite appears Dull and Soft and Pseudotachylite appears Dull and Soft. The luster of Pseudotachylite and Pseudotachylite is vitreous. Pseudotachylite and Pseudotachylite are available in black, brown, green, grey, pink, white colors. The commercial uses of Pseudotachylite and Pseudotachylite are creating artwork, gemstone.