Physical properties of rocks are used to identify the type of rocks and to discover more about them. There are various physical properties of Tonalite like Hardness, Grain Size, Fracture, Streak, Porosity, Luster, Strength etc which defines it. The physical properties of Tonalite rock are vital in determining its Tonalite Texture and Tonalite Uses.
The physical properties of Tonalite depend on its formation. Physical properties of rocks play an important role in determining its applications in various fields. Rocks are rated on the on the Moh's Hardness Scale which rates the rocks on the scale from 1 to 10. Rocks with hardness 1-3 are soft rocks from 3-6 are medium hardness rocks and 6-10 are hard rocks. The hardness of Tonalite is 6-7 whereas its compressive strength is Not Available. Streak is the color of rock when it is crushed or powdered. The streak of Tonalite is bluish black whereas its fracture is conchoidal. Luster of Tonalite is the interaction of light with the surface of Tonalite. Luster of Tonalite is subvitreous to dull. Tonalite cleavage is not available. The specific gravity of Tonalite is 2.86-3. Tonalite is opaque in nature whereas its toughness is 2.1. You can also know all the list of rocks in Opaque Rocks, Translucent Rocks and Transparent Rocks.