Calcite Vs. Halite

Calcite is a very popular mineral composed of calcium carbonate.^[1] Halite is also a very popular mineral and its chemical composition is sodium chloride.^[2]

Quick Facts on Differences of Calcite and Halite

For a quick recap of the differences calcite and halite:

• While both calcite and halite can be translucent or transparent, calcite can be opaque.
• For chemical formulas, calcite is CaCO3 while halite is NaCl.
• While both calcite and halite can be vitreous, in terms of luster, calcite can be pearly.
• Calcite can be commonly red while halite can be commonly clear.
• Calcite's specific gravity is higher than halite - calcite ranges from 2.71 to 2.94 and halite ranges from 2.1 to 2.6.

Quick Facts on Similarities of Calcite and Halite

The similarities of calcite and halite include:

• Calcite and halite both streak white.
• Calcite's rarity is similar to halite.

Summary of Calcite

Calcite is a mineral that is widely distributed throughout the world. It is a carbonate mineral that is composed of calcium carbonate, which gives it a white or colorless appearance. Calcite is often found in sedimentary rocks, such as limestone and marble, as well as in hydrothermal veins and in some metamorphic rocks. It is also found in the shells of marine organisms, such as clams and oysters.

Summary of Halite

Halite, also known as rock salt, is a mineral that is easily recognizable by its white or colorless appearance. This mineral is formed through the process of evaporating seawater or other saline solutions. Halite is commonly found in sedimentary rocks, and its crystals are usually cubic in shape. The mineral is soft, with a Mohs hardness of 2.5, and it has a salty taste.

Table Comparison of Calcite vs Halite