Rocks , Classification and Types

1. ROCKS

2. What is a Rock?
• In geology, rock (or stone) is any
naturally occurring solid mass or
aggregate of minerals or mineraloid
matter.
• It is categorized by the minerals
included, its chemical composition,
and the way in which it is formed

3. TYPES OF ROCKS.
•
1.
2.
3.

4. • ROCK
MINERAL ORGANIC
• LATIN
MAGMA LAVA
• ROCK
METAMORPHISM

5. What is Porosity and Permeability ??
• Porosity:
Is a measure of the void spaces in a material
• Permeability:
A measure of the ability of a material (such as rocks) to transmit fluids.

6. Rocks and it’s Characteristics
Rock Type Hardness Permeability Density
Granite Igneous 6 Low 2.65 – 2.75 g/cm3
Marble Metamorphic 3 Low 2.52 – 2.64 g/cm3
Sandstone Sedimentary 6 – 7 High 2.0 – 2.6 g/cm3
Limestone Sedimentary 2 – 3 High 1.5 – 2.7 g/cm3
Basalt Igneous 6 Variable 2.9 g/cm3
Quartz Igneous/Meta 10 NULL 2.65 g/cm3
Diamond Metamorphic 7 Variable 3.5 – 3.53 g/cm3

8. Thank You