Definition
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
  
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
  
History
  
  
Origin
Unknown
  
Hawaii Islands
  
Discoverer
Unknown
  
Unknown
  
Etymology
From pyroxene mineral jadeite
  
From Greek pikros bitter + -ite, 19th century
  
Class
Metamorphic Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Medium Hardness Rock
  
Durable Rock, Hard Rock
  
Family
  
  
Group
Not Applicable
  
Volcanic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Earthy
  
Earthy, Rough
  
Color
Black, Brown, Colourless, Green, Grey, White
  
Black, Brown, Colourless, Green, Grey, Pink, White, Yellow
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
Yes
  
Yes
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
No
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
Yes
  
Appearance
Rough and Dull
  
Rough and Shiny
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
  
Countertops, Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
Garden Decoration, Office Buildings, Paving Stone
  
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
As Dimension Stone, Cutting Tool, Knives
  
As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
  
Artifacts, Monuments, Sculpture
  
Other Uses
  
  
Commercial Uses
Commemorative Tablets, Creating Artwork, Jewelry
  
As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)
  
Types
Not Available
  
Oceanite
  
Features
Host Rock for Lead
  
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
  
Not Used
  
Petroglyphs
Used
  
Not Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Absent
  
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.
  
Picrite 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.
  
Composition
  
  
Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
  
Biotite, Olivine, Plagioclase, Pyrrhotite
  
Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
  
Al, CaO, Carbon Dioxide, Mg, MgO
  
Transformation
  
  
Metamorphism
Yes
  
Yes
  
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Biological 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
  
Physical Properties
  
  
Hardness
3-5
  
6.8
  
Grain Size
Very fine-grained
  
Fine Grained
  
Fracture
Uneven
  
Uneven
  
Streak
White, Greenish White or Grey
  
White, Greenish White or Grey
  
Porosity
Less Porous
  
Less Porous
  
Luster
Waxy and Dull
  
Subvitreous to Dull
  
Compressive Strength
310.00 N/mm2
  
2
189.00 N/mm2
  
11
Cleavage
Irregular
  
Imperfect
  
Toughness
7
  
2.1
  
Specific Gravity
2.79-3
  
2.75-2.92
  
Transparency
Opaque
  
Opaque
  
Density
2.5-3 g/cm3
  
1.5-2.5 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.95 kJ/Kg K
  
9
0.88 kJ/Kg K
  
13
Resistance
Heat Resistant, Water Resistant
  
Heat Resistant
  
Deposits in Eastern Continents
  
  
Asia
India, Saudi Arabia, Singapore, South Korea
  
India, Russia
  
Africa
Ethiopia, Western Africa
  
South Africa
  
Europe
England, Georgia, Switzerland, United Kingdom
  
Iceland
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada
  
Canada, USA
  
South America
Colombia
  
Brazil
  
Deposits in Oceania Continent
  
  
Australia
Central Australia, New South Wales, New Zealand, Western Australia
  
Not Yet Found
  
All about Jadeitite and Picrite Properties
Know all about Jadeitite and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Jadeitite belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks.Texture of Jadeitite is Earthy whereas that of Picrite is Earthy, Rough. Jadeitite appears Rough and Dull and Picrite appears Rough and Shiny. The luster of Jadeitite is waxy and dull while that of Picrite is subvitreous to dull. Jadeitite is available in black, brown, colourless, green, grey, white colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Jadeitite are commemorative tablets, creating artwork, jewelry and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).