Hornfels

Wackestone

Hornfels and Wackestone

Hornfels

Wackestone

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1 Definition

1.1 Definition

Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock

A carbonate rock which is matrix supported and contains over 10% allochems in a carbonate mud matrix.

1.2 History

1.2.1 Origin

New Zealand

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From German which means hornstone

From the English mud and stone, from low German mudde and stainaz

1.4 Class

Metamorphic Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Granular, Platy

Clastic

2.2 Color

Brown, Dark Greenish - Grey, Green, Reddish Brown

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Dull

Rough and Dull

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Flooring, Homes, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

3.1.2 Exterior Uses

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

As Facing Stone, Garden Decoration, Roof Tiles

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

for Road Aggregate, Roadstone

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork

Cemetery Markers, Pottery

4 Types

4.1 Types

Biotite hornfels

Marl, Shale and Argillite

4.2 Features

Smooth to touch

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

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Absent

Present

5 Formation

5.1 Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Hornfels is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Wackestone is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. These particles settle down and are then compacted due to high temperature and pressure hence forming Wackestone.

5.2 Composition

5.2.1 Mineral Content

Andalusite

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

5.2.2 Compound Content

Fe, Mg

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

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

Chemical Erosion, Sea Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

2-32-3

1 7

6.1.2 Grain Size

Fine Grained

Very fine-grained

6.1.3 Fracture

Conchoidal

6.1.4 Streak

Unknown

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Shiny

Dull

6.1.7 Compressive Strength

5.80 N/mm²225.00 N/mm²

0.15 450

6.1.8 Cleavage

Perfect

6.1.9 Toughness

Not Yet Found

2.6

6.1.10 Specific Gravity

3.4-3.92.2-2.8

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

0.25-0.30 g/cm³2.4-2.8 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.84 kJ/Kg K0.39 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand

Bangladesh, China, India, Russia

7.1.2 Africa

Cameroon, East Africa, Tanzania, Western Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

7.1.3 Europe

United Kingdom

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

USA

7.2.2 South America

Bolivia, Brazil, Colombia, Ecuador

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland, Western Australia

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

All about Hornfels and Wackestone Properties

Know all about Hornfels and Wackestone properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Wackestone belongs to Sedimentary Rocks.Texture of Hornfels is Granular, Platy whereas that of Wackestone is Clastic. Hornfels appears Dull and Wackestone appears Rough and Dull. The luster of Hornfels is shiny while that of Wackestone is dull. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Wackestone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Hornfels are cemetery markers, commemorative tablets, creating artwork and that of Wackestone are cemetery markers, pottery.