Gabbro

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Gabbro
Categories:	Ceramic
Material Notes:	Granite is an igneous rock with a coarse texture and grain size > 3 mm (plutonic). Gabbros are basic rocks, with a total silica content of 45-55%.Predominent minerals in this generally dark colored rock are the ferromagnesium minerals (hornblende, olivine, pyroxene) and plagioclase feldspar. Property values are typical of Gabbro used in construction. Actual property values will vary from sample to sample.
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Physical Properties	Original Value	Comments

Density	2.81 - 3.03 g/cc
Moisture Expansion	0.0056 %	Source: St. Peters, PA, USA
Porosity	0.30 - 2.7 %
Permeability	1.0e-7 - 0.000010	Aggregation property, d (µ = (-log d))

Mechanical Properties	Original Value	Comments
Hardness, Shore H	40 - 92
Hardness, Mohs	4.8 - 6.5
Tensile Strength, Ultimate	15.0 - 30.0 MPa
Modulus of Elasticity	70.0 - 110 GPa
Modulus of Rupture	0.0138 - 0.0552 GPa
Flexural Strength	10.0 - 20.0 MPa
Transverse Strength	14.0 - 55.0 MPa
Compressive Strength	18000 - 44000 psi
Impact Toughness	5.60 - 34.0 in/in²

Thermal Properties	Original Value	Comments
CTE, linear	2.00 - 7.00 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	0.590 J/g-°C
Thermal Conductivity	1.70 - 2.50 W/m-K

References for this datasheet.

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BMIN042 / 193

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