Syenite and Jadeitite
Definition
Definition
Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
History
Discoverer
Unknown
Unknown
Etymology
From French syénite, from Latin Syenites (lapis ) (stone) of Syene
From pyroxene mineral jadeite
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Not Applicable
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Earthy
Earthy
Color
Brown, Buff, Cream, Green, Grey, Pink, White
Black, Brown, Colourless, Green, Grey, White
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
Yes
No
Stain Resistant
No
No
Wind Resistant
Yes
No
Acid Resistant
Yes
No
Appearance
Banded and Foilated
Rough and Dull
Uses
Architecture
Interior Uses
Flooring, Homes, Hotels, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
As Dimension Stone, Cutting Tool, Knives
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Jewellery, Monuments, Sculpture
Other Uses
Commercial Uses
Cemetery Markers, Creating Artwork
Commemorative Tablets, Creating Artwork, Jewelry
Types
Types
Shonkinite
Not Available
Features
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable
Host Rock for Lead
Archaeological Significance
Monuments
Used
Used
Famous Monuments
Data Not Available
Data Not Available
Sculpture
Used
Used
Famous Sculptures
Data Not Available
Data Not Available
Pictographs
Used
Used
Petroglyphs
Used
Used
Figurines
Used
Used
Fossils
Absent
Absent
Formation
Formation
Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.
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.
Composition
Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Transformation
Metamorphism
Yes
Yes
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Weathering
Yes
No
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
5.5-6
3-5
Grain Size
Medium to Fine Coarse Grained
Very fine-grained
Fracture
Not Available
Uneven
Streak
White
White, Greenish White or Grey
Porosity
Less Porous
Less Porous
Luster
Subvitreous to Dull
Waxy and Dull
Compressive Strength
150.00 N/mm2
14
310.00 N/mm2
2
Cleavage
Perfect
Irregular
Toughness
Not Available
7
Specific Gravity
2.6-2.7
2.79-3
Transparency
Opaque
Opaque
Density
2.6-2.8 g/cm3
2.5-3 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
0.95 kJ/Kg K
9
Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant, Water Resistant
Reserves
Deposits in Eastern Continents
Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
India, Saudi Arabia, Singapore, South Korea
Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Ethiopia, Western Africa
Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland
England, Georgia, Switzerland, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
USA
Canada
South America
Brazil, Chile
Colombia
Deposits in Oceania Continent
Australia
New Zealand, Queensland, South Australia, Western Australia
Central Australia, New South Wales, New Zealand, Western Australia
All about Syenite and Jadeitite Properties
Know all about Syenite and Jadeitite properties here. All properties of rocks are important as they define the type of rock and its application. Syenite belongs to Igneous Rocks while Jadeitite belongs to Metamorphic Rocks.Texture of Syenite is Earthy whereas that of Jadeitite is Earthy. Syenite appears Banded and Foilated and Jadeitite appears Rough and Dull. The luster of Syenite is subvitreous to dull while that of Jadeitite is waxy and dull. Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Jadeitite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Syenite are cemetery markers, creating artwork and that of Jadeitite are commemorative tablets, creating artwork, jewelry.
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