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Trondhjemite and Diamictite


Diamictite and Trondhjemite


Definition

Definition
Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.  
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  

History
  
  

Origin
Tonale, Italy  
Southern Mongolia  

Discoverer
Unknown  
Unknown  

Etymology
From Trondheim, Norway  
From Greek dia through and meiktós or mixed  

Class
Igneous Rocks  
Sedimentary Rocks  

Sub-Class
Durable Rock, Hard Rock  
Durable Rock, Soft Rock  

Family
  
  

Group
Plutonic  
-  

Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock  
Coarse Grained Rock, Opaque Rock  

Texture

Texture
Phaneritic  
Clastic  

Color
Black, Brown, Light to Dark Grey, White  
Brown, Buff  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
No  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Banded and Foilated  
Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration  
Decorative Aggregates, Interior Decoration  

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings  
As Building Stone, Paving Stone  

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate  
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork  
Commemorative Tablets, Creating Artwork, Production of Lime  

Types

Types
Intermediate intrusive rock  
Bedded Diamictite and Laminated Diamictite  

Features
Is one of the oldest rock, Typically speckled black and white.  
Host Rock for Lead, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
When alkali feldspar is extracted from granite, it changes to granitoid and later, it becomes trondhjemite with quartz as major mineral.  
Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.  

Composition
  
  

Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Manganese Oxides, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon  
Calcite, Clay, Feldspar, Micas, Quartz  

Compound Content
NaCl, CaO, MgO, Silicon Dioxide  
-  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism  
-  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
Biological Weathering, Chemical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion  
Chemical Erosion, Coastal Erosion, Water Erosion  

Properties

Physical Properties
  
  

Hardness
6-7  
2-3  

Grain Size
Medium to Fine Coarse Grained  
Coarse Grained  

Fracture
Conchoidal  
Conchoidal to Uneven  

Streak
Bluish Black  
Light to dark brown  

Porosity
Very Less Porous  
Highly Porous  

Luster
Subvitreous to Dull  
Grainy, Pearly and Vitreous  

Compressive Strength
130.00 N/mm2  
24
-  

Cleavage
-  
-  

Toughness
2.1  
-  

Specific Gravity
2.86-3  
4.3-5.0  

Transparency
Opaque  
Opaque  

Density
2.73 g/cm3  
2.2-2.35 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
0.75 kJ/Kg K  
20

Resistance
Heat Resistant, Pressure Resistant, Wear Resistant  
Heat Resistant, Impact Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
China, India, Kazakhstan, Mongolia, Russia  

Africa
Egypt  
Namibia, Nigeria, South Africa  

Europe
Finland, Germany, Italy, Romania, Sweden, Turkey  
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, USA  

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru  
Brazil, Venezuela  

Deposits in Oceania Continent
  
  

Australia
New Zealand, South Australia, Western Australia  
New South Wales, New Zealand  

Summary >>
<< Reserves

All about Trondhjemite and Diamictite Properties

Know all about Trondhjemite and Diamictite properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Diamictite belongs to Sedimentary Rocks.Texture of Trondhjemite is Phaneritic whereas that of Diamictite is Clastic. Trondhjemite appears Banded and Foilated and Diamictite appears Banded. The luster of Trondhjemite is subvitreous to dull while that of Diamictite is grainy, pearly and vitreous. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Diamictite is available in brown, buff colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Diamictite are commemorative tablets, creating artwork, production of lime.

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