1. What is Density of Granite vs Basalt?

Definition: This calculator compares the density of granite and basalt rocks based on mass and volume inputs.

Purpose: It helps geologists, engineers, and construction professionals understand the density differences between these common rock types.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: The mass is divided by volume to calculate density, then compared to typical ranges for granite and basalt.

3. Importance of Density Comparison

Details: Basalt is generally denser than granite (2800-3000 kg/m³ vs 2600-2700 kg/m³), affecting construction choices, structural support, and material selection.

4. Using the Calculator

Tips: Enter the mass in kilograms and volume in cubic meters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is basalt denser than granite?
A: Basalt has a finer-grained structure with less porosity and more iron/magnesium minerals compared to granite's coarser, quartz-rich composition.

Q2: How does density affect construction use?
A: Denser basalt is stronger for foundations, while granite is preferred for decorative uses due to its appearance and workability.

Q3: Can density vary within the same rock type?
A: Yes, density varies based on mineral composition, porosity, and moisture content.

Q4: What's the practical significance of this difference?
A: Basalt's higher density makes it better for erosion resistance and heavy-duty applications.

Q5: How accurate are the typical ranges?
A: These are general ranges - specific samples may vary by ±100 kg/m³ depending on exact composition.