Definition
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature
Discoverer
Christian Leopold von Buch
Edgar Bailey
Etymology
From Latin glaber bare, smooth, bald
From French schiste, Greek skhistos i.e. split
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Group
Plutonic
Not Applicable
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Phaneritic
Foliated
Color
Dark Grey to Black
Blue, Bluish - Grey, Purple, Shades of Blue
Durability
Durable
Durable
Appearance
Veined and Shiny
Dull and Banded
Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration
Floor Tiles, Flooring, Homes, Hotels, Kitchens
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Not Yet Used
Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Monuments, Sculpture
Commercial Uses
Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones
Types
Not Available
Not Available
Features
Smooth to touch
Has High structural resistance against erosion and climate, Very fine grained rock
Archaeological Significance
Famous Monuments
Data Not Available
Data Not Available
Famous Sculptures
Data Not Available
Data Not Available
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Formation
Gabbro, a mafic rock, forms due to cooling and crystallization of magma underneath Earth's surface.
Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.
Mineral Content
Augite, Olivine, Plagioclase, Pyroxene
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz
Compound Content
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Types of Metamorphism
Impact Metamorphism
Not Applicable
Types of Weathering
Chemical Weathering
Mechanical Weathering
Types of Erosion
Coastal Erosion
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
Grain Size
Coarse Grained
Fine to Medium Grained
Fracture
Conchoidal
Conchoidal
Streak
Black
White to Grey
Porosity
Highly Porous
Highly Porous
Luster
Not Available
Dull
Compressive Strength
Not Available
Cleavage
Not Available
Slaty
Specific Gravity
2.86-2.87
3-3.2
Transparency
Opaque
Opaque
Density
2.7-3.3 g/cm3
2.8-2.9 g/cm3
Resistance
Impact Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant
Deposits in Eastern Continents
Asia
India, Russia
Japan, Turkey
Africa
South Africa
Egypt, Ethiopia, South Africa
Europe
Germany, Greece, Italy, Scotland, Turkey
France, Greece, Iceland
Others
Greenland
Not Yet Found
Deposits in Western Continents
North America
Canada, USA
USA
South America
Brazil, Colombia, Venezuela
Not Yet Found
Deposits in Oceania Continent
Australia
New Zealand, Queensland
New Zealand
Gabbro vs Blueschist Characteristics
Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Gabbro vs Blueschist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Gabbro and Properties of Blueschist. Learn more about Gabbro vs Blueschist in the next section. The interior uses of Gabbro include Countertops, Decorative aggregates, Homes and Interior decoration whereas the interior uses of Blueschist include Floor tiles, Flooring, Homes, Hotels and Kitchens. Due to some exceptional properties of Gabbro and Blueschist, they have various applications in construction industry. The uses of Gabbro in construction industry include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate and that of Blueschist include As dimension stone, Cobblestones, Rail track ballast, Roadstone.
More about Gabbro and Blueschist
Here you can know more about Gabbro and Blueschist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Gabbro and Blueschist consists of mineral content and compound content. The mineral content of Gabbro includes Augite, Olivine, Plagioclase, Pyroxene and mineral content of Blueschist includes Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Gabbro vs Blueschist, the texture, color and appearance plays an important role in determining the type of rock. Gabbro is available in dark grey to black colors whereas, Blueschist is available in blue, bluish - grey, purple, shades of blue colors. Appearance of Gabbro is Veined and Shiny and that of Blueschist is Dull and Banded. Properties of rock is another aspect for Gabbro vs Blueschist. The hardness of Gabbro is 7 and that of Blueschist is 3.5-4. The types of Gabbro are Not Available whereas types of Blueschist are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Gabbro is black while that of Blueschist is white to grey. The specific heat capacity of Gabbro is Not Available and that of Blueschist is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Gabbro is impact resistant, pressure resistant, wear resistant whereas Blueschist is impact resistant, pressure resistant.
