Schorl

Schorl is a popular mineral composed of sodium iron aluminum borosilicate. ^[1]

Schorl: Quick Facts and Characteristics

Some quick facts for Schorl:

• Transparency: Schorl is opaque.
• Crystallography: In terms of crystallography, schorl is hexagonal.
• Luster: In terms of luster, schorl can be dull or submetallic.
• Streak: Schorl streaks white.
• Specific Gravity: Schorl's specific gravity ranges from 3.1 to 3.2.

Schorl: Background and Summary

Schorl is a mineral that belongs to the tourmaline family. It is a black or dark brown mineral that is commonly found in granites and other igneous rocks. Schorl has a high density and a vitreous luster. It is also known for its pyroelectric and piezoelectric properties, which means that it can generate an electric charge when subjected to heat or pressure.

To identify schorl, one can look for its black or dark brown color and its elongated prismatic shape. It can also be identified by its high density, which makes it heavier than most other minerals of the same size. Schorl is also often found in association with other minerals, such as feldspar, mica, and quartz.

Schorl has several uses in industry and jewelry making. It is often used as an abrasive in sandpaper and other grinding materials. It is also used in the production of electrical equipment, such as capacitors and semiconductors. In jewelry making, schorl is used as a gemstone and is valued for its deep black color and durability.