1 Definition
1.1 Definition
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals
1.2 History
1.2.1 Origin
Spain
1.2.2 Discoverer
Unknown
1.3 Etymology
From Old French pomis, from a Latin dialect variant of pumex
1.4 Class
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Vesicular
2.2 Color
Beige, Colourless, Grey, Light Green, Light Grey, Pink, White, Yellow- grey
2.3 Maintenance
Less
2.4 Durability
Durable
2.4.1 Water Resistant
✔
✘
81% - Igneous Rocks Rocks have it !
▶
2.4.2 Scratch Resistant
✔
✘
86% - Igneous Rocks Rocks have it !
▶
2.4.3 Stain Resistant
✔
✘
66% - Igneous Rocks Rocks have it !
▶
2.4.4 Wind Resistant
✔
✘
49% - Igneous Rocks Rocks have it !
▶
2.4.5 Acid Resistant
✔
✘
48% - Igneous Rocks Rocks have it !
▶
2.5 Appearance
Vesicular
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Flooring, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
3.1.3 Other Architectural Uses
Curbing, Powder
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, In landscaping and horticulture, Making natural cement, Production of lightweight concrete blocks
3.2.2 Medical Industry
As an abrasive in skin exfoliating products, In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
3.3 Antiquity Uses
Artifacts
3.4 Other Uses
3.4.1 Commercial Uses
As a traction material on snow-covered roads, As an abrasive in pencil erasers, Fine abrasive used for polishing, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Used in aquariums
4 Types
4.1 Types
Scoria
4.2 Features
Host Rock for Lead
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
4.3.2 Famous Monuments
Not Applicable
4.3.3 Sculpture
Not Yet Used
4.3.4 Famous Sculptures
Not Applicable
4.3.5 Pictographs
Used
4.3.6 Petroglyphs
Used
4.3.7 Figurines
Not Yet Used
4.4 Fossils
Absent
5 Formation
5.1 Formation
Pumice rock forms when the magma cools so quickly that atoms in the melt are not able to arrange themselves into a crystalline structure.
5.2 Composition
5.2.1 Mineral Content
Aluminum Oxides, Calcite, Carbonate, Iron Oxides, Silica
5.2.2 Compound Content
Al, Aluminium Oxide, CaO, Carbon Dioxide, MgO, Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
✔
✘
97% - Igneous Rocks Rocks have it !
▶
5.3.2 Types of Metamorphism
Burial Metamorphism, Impact Metamorphism
5.3.3 Weathering
✔
✘
99% - Igneous Rocks Rocks have it !
▶
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
✔
✘
92% - Igneous Rocks Rocks have it !
▶
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.1.2 Grain Size
Fine Grained
6.1.3 Fracture
Planar
6.1.4 Streak
White, Greenish White or Grey
6.1.5 Porosity
Highly Porous
6.1.6 Luster
Earthy
6.1.7 Compressive Strength
51.20 N/mm2
Rank: 26 (Overall) ▶
0.15
450
6.1.8 Cleavage
Perfect
6.1.9 Toughness
3
6.1.10 Specific Gravity
6.1.11 Transparency
Opaque
6.1.12 Density
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.87 kJ/Kg K
Rank: 14 (Overall) ▶
0.14
3.2
6.2.2 Resistance
Impact Resistant, Pressure Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
7.1.2 Africa
Ethiopia, Kenya, Tanzania
7.1.3 Europe
Greece, Hungary, Iceland, Italy, Turkey
7.1.4 Others
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
7.2.2 South America
Argentina, Chile, Ecuador, Peru
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand, Western Australia