Definition
A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.
Discoverer
Usiglio
Unknown
Etymology
From a sediment left after the evaporation
From pseudo- + tachylite, a glassy rock generated by frictional heat within faults.
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Color
Green, Grey, Silver, White
Black, Brown, Green, Grey, Pink, White
Durability
Durable
Durable
Appearance
Glassy, Vesicular and Foilated
Dull and Soft
Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Decorative Aggregates, Entryways, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Construction Industry
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
Medical Industry
Taken as a Supplement for Calcium or Magnesium
-
Antiquity Uses
Artifacts
Artifacts, Monuments
Commercial Uses
Used in the manufacture of Ceramic Powder, Used in the preparation of Sulfuric Acid and Silicon Diborite
Creating Artwork, Gemstone
Types
Sedimentary rock
Cataclastic rock
Features
Generally rough to touch, Splintery, Veined
Host Rock for Lead
Archaeological Significance
Formation
Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.
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
Calcite, Cancrinite, Gypsum, Kyanite, Magnetite
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides
Compound Content
CaMg(CO3)2, CaO, Calcium Sulfate, KCl, MgO, NaCl
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Grain Size
Medium to Fine Coarse Grained
Very fine-grained
Fracture
Conchoidal
Uneven
Streak
White
Light to dark brown
Porosity
Less Porous
Less Porous
Luster
Subvitreous to Dull
Vitreous
Specific Gravity
2.86-2.99
2.46-2.86
Transparency
Translucent
Transparent to Translucent
Density
2.8-2.9 g/cm3
2.7-2.9 g/cm3
Resistance
Heat Resistant, Pressure Resistant
Heat Resistant
Deposits in Eastern Continents
Europe
United Kingdom
Great Britain, Switzerland
Deposits in Western Continents
South America
Colombia, Paraguay
-
Deposits in Oceania Continent
Australia
Central Australia, Western Australia
Central Australia, Western Australia
All about Evaporite and Pseudotachylite Properties
Know all about Evaporite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Evaporite belongs to Sedimentary Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Evaporite is Earthy whereas that of Pseudotachylite is Quench. Evaporite appears Glassy, Vesicular and Foilated and Pseudotachylite appears Dull and Soft. The luster of Evaporite is subvitreous to dull while that of Pseudotachylite is vitreous. Evaporite is available in green, grey, silver, white colors whereas Pseudotachylite is available in black, brown, green, grey, pink, white colors. The commercial uses of Evaporite are used in the manufacture of ceramic powder, used in the preparation of sulfuric acid and silicon diborite and that of Pseudotachylite are creating artwork, gemstone.