Definition
Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone
Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt
Origin
Southern Mongolia
Iceland
Discoverer
Unknown
Unknown
Etymology
From Greek dia through and meiktós or mixed
From German Tachylite, from tachy- + Greek lutos soluble, melting
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Color
Brown, Buff
Black, Dark Brown
Durability
Durable
Durable
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Interior Decoration
Exterior Uses
As Building Stone, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
Other Architectural Uses
Curbing
Curbing
Construction Industry
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone
Cutting Tool, Knives, Landscaping, Scrapers
Antiquity Uses
Artifacts
Artifacts
Commercial Uses
Commemorative Tablets, Creating Artwork, Production of Lime
Cemetery Markers, Creating Artwork
Types
Bedded Diamictite and Laminated Diamictite
Volcanic glass
Features
Host Rock for Lead, Is one of the oldest rock
Available in Lots of Colors and Patterns, Clasts are smooth to touch
Archaeological Significance
Formation
Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.
Tachylite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Mineral Content
Calcite, Clay, Feldspar, Micas, Quartz
Feldspar, Olivine
Compound Content
-
Fe, Mg
Types of Metamorphism
-
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion
Grain Size
Coarse Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal to Uneven
Conchoidal
Streak
Light to dark brown
Vermilion
Porosity
Highly Porous
Less Porous
Luster
Grainy, Pearly and Vitreous
Resinous
Specific Gravity
4.3-5.0
2.4
Transparency
Opaque
Opaque
Density
2.2-2.35 g/cm3
3.058 g/cm3
Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
China, India, Kazakhstan, Mongolia, Russia
Cambodia, Russia, South Korea
Africa
Namibia, Nigeria, South Africa
East Africa
Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
England, Germany, Hungary, Iceland, Scotland, Sweden
Deposits in Western Continents
North America
Canada, USA
USA
South America
Brazil, Venezuela
-
Deposits in Oceania Continent
Australia
New South Wales, New Zealand
Victoria
Diamictite vs Tachylite 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. Diamictite vs Tachylite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Diamictite and Properties of Tachylite. Learn more about Diamictite vs Tachylite in the next section. The interior uses of Diamictite include Decorative aggregates and Interior decoration whereas the interior uses of Tachylite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Diamictite and Tachylite, they have various applications in construction industry. The uses of Diamictite in construction industry include As dimension stone, Construction aggregate, For road aggregate, Landscaping, Roadstone and that of Tachylite include Cutting tool, Knives, Landscaping, Scrapers.
More about Diamictite and Tachylite
Here you can know more about Diamictite and Tachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Diamictite and Tachylite consists of mineral content and compound content. The mineral content of Diamictite includes Calcite, Clay, Feldspar, Micas, Quartz and mineral content of Tachylite includes Feldspar, Olivine. You can also check out the list of all Sedimentary Rocks. When we have to compare Diamictite vs Tachylite, the texture, color and appearance plays an important role in determining the type of rock. Diamictite is available in brown, buff colors whereas, Tachylite is available in black, dark brown colors. Appearance of Diamictite is Banded and that of Tachylite is Glassy. Properties of rock is another aspect for Diamictite vs Tachylite. The hardness of Diamictite is 2-3 and that of Tachylite is 5.5. The types of Diamictite are Bedded Diamictite and Laminated Diamictite whereas types of Tachylite are Volcanic glass. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Diamictite is light to dark brown while that of Tachylite is vermilion. The specific heat capacity of Diamictite is 0.75 kJ/Kg K and that of Tachylite is 0.56 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Diamictite is heat resistant, impact resistant whereas Tachylite is heat resistant, impact resistant, wear resistant.