Evaporite

Porphyry

Evaporite and Porphyry

Evaporite

Porphyry

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Definition

A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution

Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix

History

Origin

USA

Egypt

Discoverer

Usiglio

Unknown

Etymology

From a sediment left after the evaporation

From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Earthy

Porphyritic

Color

Green, Grey, Silver, White

Black, Brown, Green, Grey, Red, Rust, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy, Vesicular and Foilated

Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

Exterior Uses

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

Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Construction Aggregate

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Used in the manufacture of Ceramic Powder, Used in the preparation of Sulfuric Acid and Silicon Diborite

Creating Artwork, Gemstone, Jewelry

Types

Sedimentary rock

Rhomb Porphyry

Features

Generally rough to touch, Splintery, Veined

Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.

Porphyry is formed in two stages: the magma cools slowly deep within the crust or the magma is cools rapidly as it erupts from a volcano, creating small grains that are usually invisible to naked eye.

Composition

Mineral Content

Calcite, Cancrinite, Gypsum, Kyanite, Magnetite

Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica

Compound Content

CaMg(CO₃)₂, CaO, Calcium Sulfate, KCl, MgO, NaCl

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

2-36-7

1 7

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Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Conchoidal

Irregular

Streak

White

Porosity

Less Porous

Luster

Subvitreous to Dull

Dull

Compressive Strength

225.00 N/mm²150.00 N/mm²

0.15 450

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Cleavage

Perfect

Toughness

1.7

Specific Gravity

2.86-2.992.5-4

0 8.4

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Transparency

Translucent

Translucent to Opaque

Density

2.8-2.9 g/cm³2.5-2.52 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.71 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant

Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam

Africa

Egypt, Ethiopia, Ghana, South Africa

Europe

United Kingdom

Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland

Others

Greenland

Deposits in Western Continents

North America

USA

Canada, Cuba, Jamaica, USA

South America

Colombia, Paraguay

Bolivia, Brazil, Colombia, Ecuador, Paraguay

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New South Wales, New Zealand, Western Australia

All about Evaporite and Porphyry Properties

Know all about Evaporite and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Evaporite belongs to Sedimentary Rocks while Porphyry belongs to Igneous Rocks.Texture of Evaporite is Earthy whereas that of Porphyry is Porphyritic. Evaporite appears Glassy, Vesicular and Foilated and Porphyry appears Dull. The luster of Evaporite is subvitreous to dull while that of Porphyry is dull. Evaporite is available in green, grey, silver, white colors whereas Porphyry is available in black, brown, green, grey, red, rust, white colors. The commercial uses of Evaporite are used in the manufacture of ceramic powder, used in the preparation of sulfuric acid and silicon diborite and that of Porphyry are creating artwork, gemstone, jewelry.