Quartz Vs. Smoky Quartz

Quartz is a very popular gemstone composed of silicon dioxide.^[1] Smoky quartz is also a very popular gemstone and its chemical composition is also silicon dioxide.^[2]

Quick Facts on Differences of Quartz and Smoky Quartz

For a quick recap of the differences quartz and smoky quartz:

• While both quartz and smoky quartz can be translucent or transparent, quartz can be opaque.
• While both quartz and smoky quartz can be hexagonal, in terms of crystallography, quartz can be trigonal.
• While both quartz and smoky quartz can be vitreous, in terms of luster, quartz can be greasy or waxy.
• Quartz can be commonly red or yellow while smoky quartz can be commonly black or brown.
• Quartz's rarity is less rare than smoky quartz.

Quick Facts on Similarities of Quartz and Smoky Quartz

The similarities of quartz and smoky quartz include:

• For chemical formulas, quartz and smoky quartz both are SiO2.
• Quartz and smoky quartz both streak white.
• Quartz's hardness is similar to smoky quartz - they both are 7 on the Moh's scale.

Summary of Quartz

Quartz is a mineral that is composed of silicon and oxygen atoms arranged in a continuous framework of SiO4 silicon-oxygen tetrahedra. It is one of the most abundant minerals found in the Earth's crust. Quartz can be found in a variety of colors such as white, pink, purple, brown, gray, and black. It is also known for its unique crystal structure, which is hexagonal in shape, and its hardness, which is 7 on the Mohs scale.

Summary of Smoky Quartz

Smoky quartz is a mineral that is a member of the quartz family. It is one of the most common minerals on earth and is found in many different locations around the world. Smoky quartz gets its name from its smoky brown color, which is caused by natural radiation from nearby rocks during the formation process. The color can range from light brown to almost black, and it may also have a slightly transparent or translucent appearance.

Table Comparison of Quartz vs Smoky Quartz