Ganister and Trachyte

Ganister

Trachyte

Definition

A ganister is a hard, fine-grained quartzose sandstone or orthoquartzite which is basically used in the manufacture of silica brick typically used to line furnaces and is a type of sedimentary rocks.

Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar

History

Origin

England

Unknown

Discoverer

Unknown

Alexandre Brongniart and René Just Haüy

Etymology

From gan′is-ter i.e a hard, close-grained siliceous stone, often forming the stratum which underlies a coal-seam

From Greek trakhus rough’ or trakhutēs roughness

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Not Applicable

Volcanic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Clastic, Granular, Rough

Aphanitic to Porphyritic

Color

Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow

Black, Brown, Dark Greenish - Grey, Green, Grey, Light to Dark Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Yes

Acid Resistant

Appearance

Rough

Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Flooring, Homes, Interior Decoration

Exterior Uses

As Building Stone, Garden Decoration, Office Buildings, Paving Stone

As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones

Cemetery Markers, Creating Artwork

Types

Not Available

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock

Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Not Used

Used

Petroglyphs

Not Used

Used

Figurines

Used

Fossils

Present

Absent

Formation

Ganisters are formed by the destruction of easily weathered minerals mainly feldspar, within the surface horizon of soil by soil-forming processes.

Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite rock and forms as a result of magmatic differentiation.

Composition

Mineral Content

Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz

Augite, Biotite, Feldspar, Hornblade, Plagioclase, Quartz

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide

Potassium Oxide, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

Yes

Types of Metamorphism

Not Applicable

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

Yes

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Yes

Types of Erosion

Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-7

Grain Size

Coarse or Fine

Fine Grained

Fracture

Splintery

Not Available

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Dull

Metallic

Compressive Strength

95.00 N/mm²

150.00 N/mm²

Cleavage

Perfect

Not Available

Toughness

2.6

Not Available

Specific Gravity

2.2-2.8

2.7

Transparency

Opaque

Density

2.2-2.8 g/cm³

2.43-2.45 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Not Available

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

Namibia, Nigeria, South Africa

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

Europe

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Bulgaria, England, Germany, Norway, Romania, Switzerland

Others

Greenland

Not Yet Found

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil

Brazil, Chile

Deposits in Oceania Continent

Australia

New South Wales, New Zealand

New Zealand, Queensland, South Australia, Western Australia

Summary >>

<< Reserves

All about Ganister and Trachyte Properties

Know all about Ganister and Trachyte properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Trachyte belongs to Igneous Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Trachyte is Aphanitic to Porphyritic. Ganister appears Rough and Trachyte appears Banded. The luster of Ganister is dull while that of Trachyte is metallic. Ganister is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors. The commercial uses of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones and that of Trachyte are cemetery markers, creating artwork.