Latite

Rhyolite

Latite and Rhyolite

Latite

Rhyolite

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Definition

Latite is an igneous, volcanic rock, with aphanitic-aphyric to aphyric-porphyritic texture

Rhyolite is a fine-grained igneous rock which is rich in silica

History

Origin

Italy

North America

Discoverer

Unknown

Ferdinand von Richthofen

Etymology

From the Latin word latium

From German Rhyolit, from Greek rhuax lava stream + lithos stone

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Aphanitic, Glassy, Porphyritic

Color

Black, Brown, Green, Grey, Pink, White

Grey, White, Light Black

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough

Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration

Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens

Exterior Uses

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

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

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

Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts

Other Uses

Commercial Uses

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Metallurgical Flux, Soil Conditioner, Source of Magnesia (MgO)

Gemstone, Laboratory bench tops, Jewelry

Types

Rhomb porphyries

Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.

Features

Host Rock for Lead

Acidic in nature, Available in lots of colors

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Latite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.

Composition

Mineral Content

Alkali feldspar, Biotite, Plagioclase, Pyroxene

Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz

Compound Content

CaO, Cl, MgO

Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5-5.56-7

1 7

👆🏻

Grain Size

Fine Grained

Large and Coarse Grained

Fracture

Conchoidal

Sub-conchoidal

Streak

White

Porosity

Very Less Porous

Highly Porous

Luster

Subvitreous to Dull

Earthy

Compressive Strength

310.00 N/mm²140.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.7

Specific Gravity

2.862.65-2.67

0 8.4

👆🏻

Transparency

Translucent

Opaque

Density

2.8-2.9 g/cm³2.4-2.6 g/cm³

0 1400

👆🏻

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, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India

Africa

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

Europe

Bulgaria

Germany, Iceland, Ireland, Italy, Spain

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Queensland, Western Australia

All about Latite and Rhyolite Properties

Know all about Latite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Latite and Rhyolite belong to Igneous Rocks.Texture of Latite is Aphanitic to Porphyritic whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Latite appears Rough and Rhyolite appears Banded. The luster of Latite is subvitreous to dull while that of Rhyolite is earthy. Latite is available in black, brown, green, grey, pink, white colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Latite are an oil and gas reservoir, as a feed additive for livestock, metallurgical flux, soil conditioner, source of magnesia (mgo) and that of Rhyolite are gemstone, laboratory bench tops, jewelry.