Jadeitite and Trondhjemite
Definition
Definition
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
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.
History
Origin
Unknown
Tonale, Italy
Discoverer
Unknown
Unknown
Etymology
From pyroxene mineral jadeite
Not Available
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Not Applicable
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Texture
Earthy
Phaneritic
Color
Black, Brown, Colourless, Green, Grey, White
Black, Brown, Light to Dark Grey, White
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
No
Yes
Stain Resistant
No
Yes
Wind Resistant
No
No
Acid Resistant
No
No
Appearance
Rough and Dull
Banded and Foilated
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
As Dimension Stone, Cutting Tool, Knives
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
Other Uses
Commercial Uses
Commemorative Tablets, Creating Artwork, Jewelry
Cemetery Markers, Creating Artwork
Types
Types
Not Available
Not Available
Features
Host Rock for Lead
Is one of the oldest rock, Typically speckled black and white.
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Used
Used
Famous Sculptures
Data Not Available
Data Not Available
Pictographs
Used
Not Used
Petroglyphs
Used
Not Used
Figurines
Used
Used
Fossils
Absent
Absent
Formation
Formation
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.
When alkali feldspar is extracted from granite, it changes to granitoid and later, it becomes trondhjemite with quartz as major mineral.
Composition
Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Manganese Oxides, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon
Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
NaCl, CaO, MgO, Silicon Dioxide
Transformation
Metamorphism
Yes
Yes
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Weathering
No
Yes
Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering, Mechanical Weathering
Erosion
Yes
Yes
Types of Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
3-5
6-7
Grain Size
Very fine-grained
Medium to Fine Coarse Grained
Fracture
Uneven
Conchoidal
Streak
White, Greenish White or Grey
Bluish Black
Porosity
Less Porous
Very Less Porous
Luster
Waxy and Dull
Subvitreous to Dull
Compressive Strength
310.00 N/mm2
2
Not Available
Cleavage
Irregular
Not Available
Toughness
7
2.1
Specific Gravity
2.79-3
2.86-3
Transparency
Opaque
Opaque
Density
2.5-3 g/cm3
2.73 g/cm3
Thermal Properties
Specific Heat Capacity
0.95 kJ/Kg K
9
0.92 kJ/Kg K
10
Resistance
Heat Resistant, Water Resistant
Heat Resistant, Pressure Resistant, Wear Resistant
Reserves
Deposits in Eastern Continents
Asia
India, Saudi Arabia, Singapore, South Korea
Not Yet Found
Africa
Ethiopia, Western Africa
Egypt
Europe
England, Georgia, Switzerland, United Kingdom
Finland, Germany, Italy, Romania, Sweden, Turkey
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada
USA
South America
Colombia
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru
Deposits in Oceania Continent
Australia
Central Australia, New South Wales, New Zealand, Western Australia
New Zealand, South Australia, Western Australia
All about Jadeitite and Trondhjemite Properties
Know all about Jadeitite and Trondhjemite properties here. All properties of rocks are important as they define the type of rock and its application. Jadeitite belongs to Metamorphic Rocks while Trondhjemite belongs to Igneous Rocks.Texture of Jadeitite is Earthy whereas that of Trondhjemite is Phaneritic. Jadeitite appears Rough and Dull and Trondhjemite appears Banded and Foilated. The luster of Jadeitite is waxy and dull while that of Trondhjemite is subvitreous to dull. Jadeitite is available in black, brown, colourless, green, grey, white colors whereas Trondhjemite is available in black, brown, light to dark grey, white colors. The commercial uses of Jadeitite are commemorative tablets, creating artwork, jewelry and that of Trondhjemite are cemetery markers, creating artwork.
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