Definition
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
Discoverer
Unknown
Unknown
Etymology
From pyroxene mineral jadeite
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Group
Not Applicable
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock
Texture
Earthy
Porphyritic
Color
Black, Brown, Colourless, Green, Grey, White
Blue, Bluish - Grey
Durability
Durable
Durable
Appearance
Rough and Dull
Foliated
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration
Exterior Uses
Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Construction Industry
As Dimension Stone, Cutting Tool, Knives
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Raw material for the manufacture of mortar
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
Artifacts
Commercial Uses
Commemorative Tablets, Creating Artwork, Jewelry
Cemetery Markers
Types
Not Available
Rhyolite
Features
Host Rock for Lead
Very fine grained rock, It is One of the Oldest, Strongest and Hardest Rock
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Used
Not Yet Used
Famous Sculptures
Data Not Available
Not Applicable
Pictographs
Used
Not Used
Petroglyphs
Used
Not Used
Figurines
Used
Not Yet Used
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.
Comendite is a type of Igneous rock which is formed due to cooling and solidification of lava or magma. It may form with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Albite, Amphibole, Quartz
Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Al, Fe, Potassium Oxide
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Cataclastic Metamorphism, Regional Metamorphism
Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Coastal Erosion, Water Erosion
Grain Size
Very fine-grained
Medium Grained
Fracture
Uneven
Pervasive
Streak
White, Greenish White or Grey
Bluish Black
Porosity
Less Porous
Highly Porous
Luster
Waxy and Dull
Dull
Cleavage
Irregular
Not Available
Specific Gravity
2.79-3
2.38
Transparency
Opaque
Opaque
Density
2.5-3 g/cm3
Not Available
Specific Heat Capacity
Not Available
Resistance
Heat Resistant, Water Resistant
Heat Resistant, Impact Resistant
Deposits in Eastern Continents
Asia
India, Saudi Arabia, Singapore, South Korea
China
Africa
Ethiopia, Western Africa
East Africa
Europe
England, Georgia, Switzerland, United Kingdom
Italy
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada
Not Yet Found
South America
Colombia
Not Yet Found
Deposits in Oceania Continent
Australia
Central Australia, New South Wales, New Zealand, Western Australia
Queensland
All about Jadeitite and Comendite Properties
Know all about Jadeitite and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Jadeitite belongs to Metamorphic Rocks while Comendite belongs to Igneous Rocks.Texture of Jadeitite is Earthy whereas that of Comendite is Porphyritic. Jadeitite appears Rough and Dull and Comendite appears Foliated. The luster of Jadeitite is waxy and dull while that of Comendite is dull. Jadeitite is available in black, brown, colourless, green, grey, white colors whereas Comendite is available in blue, bluish - grey colors. The commercial uses of Jadeitite are commemorative tablets, creating artwork, jewelry and that of Comendite are cemetery markers.