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Rhyolite and Diamictite


Diamictite and Rhyolite


Definition

Definition
Rhyolite is a fine-grained igneous rock which is rich in silica   
Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone   

History
  
  

Origin
North America   
Southern Mongolia   

Discoverer
Ferdinand von Richthofen   
Unknown   

Etymology
From German Rhyolit, from Greek rhuax lava stream + lithos stone   
From Greek dia through and meiktós or mixed   

Class
Igneous Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Coarse Grained Rock, Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture

Texture
Aphanitic, Glassy, Porphyritic   
Clastic   

Color
Grey, White, Light Black   
Brown, Buff   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
Yes   
No   

Wind Resistant
Yes   
No   

Acid Resistant
Yes   
No   

Appearance
Banded   
Banded   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens   
Decorative Aggregates, Interior Decoration   

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Office Buildings   
As Building Stone, Paving Stone   

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives   
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts   

Other Uses
  
  

Commercial Uses
Gemstone, Laboratory bench tops, Jewelry   
Commemorative Tablets, Creating Artwork, Production of Lime   

Types

Types
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.   
Bedded Diamictite and Laminated Diamictite   

Features
Acidic in nature, Available in lots of colors   
Host Rock for Lead, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Not Yet Used   
Not Yet Used   

Famous Sculptures
Not Applicable   
Not Applicable   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Not Yet Used   
Not Yet Used   

Fossils
Absent   
Present   

Formation

Formation
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.   
Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.   

Composition
  
  

Mineral Content
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz   
Calcite, Clay, Feldspar, Micas, Quartz   

Compound Content
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium   
Not Available   

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering, Chemical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion   
Chemical Erosion, Coastal Erosion, Water Erosion   

Properties

Physical Properties
  
  

Hardness
6-7   
2-3   

Grain Size
Large and Coarse Grained   
Coarse Grained   

Fracture
Sub-conchoidal   
Conchoidal to Uneven   

Streak
Colorless   
Light to dark brown   

Porosity
Highly Porous   
Highly Porous   

Luster
Earthy   
Grainy, Pearly and Vitreous   

Compressive Strength
140.00 N/mm2   
15
Not Available   

Cleavage
Not Available   
Not Available   

Toughness
2   
Not Available   

Specific Gravity
2.65-2.67   
4.3-5.0   

Transparency
Opaque   
Opaque   

Density
2.4-2.6 g/cm3   
2.2-2.35 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.75 kJ/Kg K   
18

Resistance
Heat Resistant, Wear Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India   
China, India, Kazakhstan, Mongolia, Russia   

Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   
Namibia, Nigeria, South Africa   

Europe
Germany, Iceland, Ireland, Italy, Spain   
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, USA   

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela   
Brazil, Venezuela   

Deposits in Oceania Continent
  
  

Australia
New Zealand, Queensland, Western Australia   
New South Wales, New Zealand   

Summary >>
<< Reserves

All about Rhyolite and Diamictite Properties

Know all about Rhyolite and Diamictite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite belongs to Igneous Rocks while Diamictite belongs to Sedimentary Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Diamictite is Clastic. Rhyolite appears Banded and Diamictite appears Banded. The luster of Rhyolite is earthy while that of Diamictite is grainy, pearly and vitreous. Rhyolite is available in grey, white, light black colors whereas Diamictite is available in brown, buff colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Diamictite are commemorative tablets, creating artwork, production of lime.

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