Definition
Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%
History
Origin
-
Discoverer
Unknown
Etymology
From the mineral feldspathoid which is the main content of rock
Class
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Family
Group
Plutonic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Earthy
Color
Black, Brown, Green, Grey, Pink, White
Maintenance
Less
Durability
Durable
Water Resistant
✔
✘
81% - Igneous Rocks Rocks
Scratch Resistant
✔
✘
86% - Igneous Rocks Rocks
Stain Resistant
✔
✘
66% - Igneous Rocks Rocks
Wind Resistant
✔
✘
49% - Igneous Rocks Rocks
Acid Resistant
✔
✘
48% - Igneous Rocks Rocks
Appearance
Dull
Architecture
Interior Uses
Decorative Aggregates, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
Other Architectural Uses
Curbing
Industry
Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate
Medical Industry
Taken as a Supplement for Calcium or Magnesium
Antiquity Uses
Artifacts, Monuments, Sculpture
Other Uses
Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork
Types
Igneous rock
Features
Host Rock for Lead
Archaeological Significance
Monuments
-
Famous Monuments
-
Sculpture
-
Famous Sculptures
-
Pictographs
-
Petroglyphs
-
Figurines
-
Fossils
Absent
Formation
Foidolites 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
Amphibole, Biotite, Feldspar, Olivine, Plagioclase, Pyroxene
Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO
Transformation
Metamorphism
✔
✘
97% - Igneous Rocks Rocks have it !
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
Weathering
✔
✘
99% - Igneous Rocks Rocks
Types of Weathering
-
Erosion
✔
✘
92% - Igneous Rocks Rocks
Types of Erosion
-
Physical Properties
Hardness
1.5
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Fracture
Conchoidal
Streak
White
Porosity
Very Less Porous
Luster
Subvitreous to Dull
Compressive Strength
80.00 N/mm2
Rank: 33 (Overall)
0.15
450
👆🏻
Cleavage
Perfect
Toughness
-
Specific Gravity
2.86
0
8.4
👆🏻
Transparency
Translucent
Density
-9999 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.79 kJ/Kg K
Rank: 17 (Overall)
0.14
3.2
👆🏻
Resistance
Heat Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
Russia
Africa
South Africa, Western Africa
Europe
-
Others
-
Deposits in Western Continents
North America
Canada, USA
South America
-
Deposits in Oceania Continent
Australia
Central Australia, Western Australia