Diorite vs Gossan

Diorite

Gossan

Diorite

Gossan

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1 Definition

1.1 Definition

Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene

Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.

1.1 History

1.1.1 Origin

Unknown

Indonesia

1.2.1 Discoverer

Unknown

Cornish Gossen

1.3 Etymology

From early 19th century coined in French, formed irregularly from Greek diorizein distinguish

From Cornish gossen from gos, blood from Old Cornish guit

1.5 Class

Igneous Rocks

Metamorphic Rocks

1.5.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

1.6 Family

1.6.1 Group

Plutonic

Not Applicable

1.7 Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Phaneritic

Rough, Sandy

2.2 Color

Black, Brown, Light to Dark Grey, White

Brown, Brown- Black, Gold, Green, Rust

2.3 Maintenance

Less

2.5 Durability

Durable

2.5.1 Water Resistant

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2.5.3 Scratch Resistant

✔ ✘

2.6.1 Stain Resistant

✔ ✘

2.6.3 Wind Resistant

✔ ✘

2.6.4 Acid Resistant

✔ ✘

2.8 Appearance

Shiny

Dull and Banded

3 Uses

4.1 Architecture

4.2.0 Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Interior Decoration

4.2.2 Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration

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

4.3.1 Other Architectural Uses

Curbing

4.5 Industry

4.5.1 Construction Industry

As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate

4.6.1 Medical Industry

Not Yet Used

4.7 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts

4.8 Other Uses

4.8.1 Commercial Uses

Creating Artwork, Curling

Cemetery Markers, Commemorative Tablets, Gemstone

5 Types

5.1 Types

Not Available

Translocated gossan and Leakage gossan

5.2 Features

Typically speckled black and white.

Clasts are smooth to touch, Easily splits into thin plates

5.3 Archaeological Significance

5.3.2 Monuments

Used

Not Yet Used

5.3.4 Famous Monuments

Data Not Available

Not Applicable

5.3.5 Sculpture

Used

Not Yet Used

5.3.7 Famous Sculptures

Data Not Available

Not Applicable

1.0.1 Pictographs

Not Used

Used

1.1.1 Petroglyphs

Not Used

Used

2.2.2 Figurines

Used

Not Yet Used

2.3 Fossils

Absent

3 Formation

3.1 Formation

Diorite is a coarse-grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the Earth’s surface and cools down in the Earth’s crust.

Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.

3.4 Composition

3.5.1 Mineral Content

Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon

Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon

3.5.3 Compound Content

Silicon Dioxide

Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

3.7 Transformation

3.7.1 Metamorphism

✔ ✘

3.9.2 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Not Applicable

4.1.1 Weathering

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