Definition
Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone
History
Origin
-
Discoverer
Unknown
Etymology
From Pelos or clay in Greek
Class
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Family
Group
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Foliated
Color
Dark Greenish - Grey, Green, Light Green, Light Greenish Grey
Maintenance
Less
Durability
Durable
Water Resistant
✔
✘
81% - Metamorphic Rocks Rocks have it !
Scratch Resistant
✔
✘
65% - Metamorphic Rocks Rocks have it !
Stain Resistant
✔
✘
42% - Metamorphic Rocks Rocks have it !
Wind Resistant
✔
✘
19% - Metamorphic Rocks Rocks
Acid Resistant
✔
✘
15% - Metamorphic Rocks Rocks
Appearance
Banded
Architecture
Interior Uses
Decorative Aggregates, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone
Other Architectural Uses
Curbing
Industry
Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate
Medical Industry
-
Antiquity Uses
Artifacts
Other Uses
Commercial Uses
Commemorative Tablets, Creating Artwork
Types
Metamorphic rock
Features
Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock
Archaeological Significance
Monuments
-
Famous Monuments
-
Sculpture
-
Famous Sculptures
-
Pictographs
-
Petroglyphs
-
Figurines
-
Fossils
Absent
Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Metapelite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Composition
Mineral Content
Albite, Chlorite, Quartz
Compound Content
Aluminium Oxide, CaO, MgO
Transformation
Metamorphism
✔
✘
50% - Metamorphic Rocks Rocks
Types of Metamorphism
-
Weathering
✔
✘
65% - Metamorphic Rocks Rocks have it !
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Erosion
✔
✘
77% - Metamorphic Rocks Rocks have it !
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
Physical Properties
Hardness
5-6
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Fracture
Fibrous
Streak
-
Porosity
Highly Porous
Luster
Earthy
Compressive Strength
40.00 N/mm2
Rank: 40 (Overall)
0.15
450
👆🏻
Cleavage
-
Toughness
-
Specific Gravity
3.4-3.7
0
8.4
👆🏻
Transparency
Opaque
Density
0-300 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.72 kJ/Kg K
Rank: 22 (Overall)
0.14
3.2
👆🏻
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Deposits in Eastern Continents
Asia
-
Africa
Western Africa
Europe
United Kingdom
Others
-
Deposits in Western Continents
North America
-
South America
Brazil, Colombia, Ecuador
Deposits in Oceania Continent
Australia
Central Australia, Western Australia