Definition
Hyaloclastite is an aggregate of fine, glassy debris formed by the sudden contact of hot, coherent magma and cold water or water-saturated sediment
  
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
  
History
  
  
Origin
Unknown
  
Italy
  
Discoverer
Unknown
  
Marcus Vitruvius Pollio
  
Etymology
From hyalo + -ite
  
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
  
Class
Igneous Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Volcanic
  
Not Applicable
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Pyroclastic
  
Banded
  
Color
Brown, Grey, Yellow
  
Beige, Black, Blue, Brown, Grey, Red, White, Yellow
  
Maintenance
More
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
No
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
Yes
  
Appearance
Dull
  
Fibrous
  
Architecture
  
  
Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration
  
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
  
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
Building houses or walls, Construction Aggregate
  
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
  
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
  
Other Uses
  
  
Commercial Uses
Cemetery Markers, Creating Artwork
  
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery
  
Types
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff and Andesitic tuff.
  
Not Available
  
Features
Always found as volcanic pipes over deep continental crust
  
Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Used
  
Used
  
Famous Monuments
Data Not Available
  
Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy
  
Sculpture
Used
  
Used
  
Famous Sculptures
Data Not Available
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Present
  
Formation
Hyaloclastite is a type of Igneous rock is formed through the cooling and solidification of lava or magma.
  
Travertine is a type of sedimentary rock formed when a river carries or transports pieces of broken rock which then undergo sedimentation. They are then subjected to high temperature and pressure hence forming travertine rock.
  
Composition
  
  
Mineral Content
Calcite, Chlorite
  
Calcite, Clay, Feldspar, Micas, Quartz
  
Compound Content
Hydrogen Sulfide, Sulfur Dioxide
  
Ca, NaCl, CaO, Oxygen
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism
  
Not Applicable
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion
  
Chemical Erosion, Coastal Erosion, Glacier Erosion
  
Physical Properties
  
  
Hardness
1-2
  
3-4
  
Grain Size
Fine Grained
  
Fine Grained
  
Fracture
Not Available
  
Splintery
  
Streak
Colorless
  
White
  
Porosity
Highly Porous
  
Highly Porous
  
Luster
Dull and Grainy
  
Dull to Pearly
  
Compressive Strength
Not Available
  
80.00 N/mm
2
  
23
Cleavage
Not Available
  
Non-Existent
  
Toughness
Not Available
  
1
  
Specific Gravity
Not Available
  
1.68
  
Transparency
Opaque
  
Opaque
  
Density
Not Available
  
2.71 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
1.09 kJ/Kg K
  
8
Resistance
Heat Resistant
  
Impact Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Russia
  
China, Russia
  
Africa
South Africa
  
Not Yet Found
  
Europe
Iceland
  
Austria, Italy, Portugal, United Kingdom
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada, USA
  
Canada, USA
  
South America
Brazil, Colombia
  
Argentina, Bolivia, Ecuador
  
Deposits in Oceania Continent
  
  
Australia
Not Yet Found
  
Not Yet Found
  
All about Hyaloclastite and Travertine Properties
Know all about Hyaloclastite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Travertine belongs to Sedimentary Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Travertine is Banded. Hyaloclastite appears Dull and Travertine appears Fibrous. The luster of Hyaloclastite is dull and grainy while that of Travertine is dull to pearly. Hyaloclastite is available in brown, grey, yellow colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.