Basalt

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Basalt
Categories:	Ceramic
Material Notes:	Igneous rock, with a fine texture and grain size < 1 mm (extrusive). It is a basic rock, with a total silica content of 45-55%. Predominant minerals in this generally dark colored rock are hornblende and plagioclase feldspar. Property values are typical of Basalt used in construction. Actual property values will vary from sample to sample.
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Physical Properties	Original Value	Comments

Density	2.70 - 3.00 g/cc	Vesicular varieties have lower values
Moisture Expansion	0.0018 %	Source: Columbia, WA, USA
Porosity	0.10 - 1.0 %
Permeability	0.000010 - 0.10	Aggregation property, d (µ = (-log d))

Mechanical Properties	Original Value	Comments
Hardness, Shore H	50 - 92
Hardness, Mohs	4.0 - 6.5
Tensile Strength, Ultimate	10.0 - 30.0 MPa
Modulus of Elasticity	60.0 - 100 GPa
Modulus of Rupture	0.0138 - 0.0552 GPa
Transverse Strength	14.0 - 55.0 MPa
Compressive Strength	16000 - 49000 psi
Impact Toughness	5.00 - 40.0 in/in²

Thermal Properties	Original Value	Comments
CTE, linear	2.20 - 6.00 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	0.340 - 1.26 J/g-°C
Thermal Conductivity	0.800 - 2.90 W/m-K

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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BMIN008 / 179

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