Tielah

Tielah is a rare and unique mineral that was first discovered in the late 19th century in the Tielah Mountains of Russia. It is a complex silicate mineral with a chemical formula of (Na,Ca)2(Fe,Mg)5Si8O22(OH)2. Tielah is known for its distinctive green color, which is due to the presence of iron in its structure. It is typically found in metamorphic rocks, particularly in association with other minerals such as garnet and staurolite.

Tielah has a hardness of 6.5 to 7 on the Mohs scale, making it relatively hard and durable. It has a specific gravity of around 3.2 to 3.3, which is slightly higher than that of quartz. The mineral is also known for its perfect cleavage, which means it can be split into thin, flat sheets along specific planes.

Tielah is not commonly used in industry due to its rarity and the fact that it is not a particularly valuable mineral. However, it is sometimes used as a gemstone due to its attractive green color. It is also of interest to mineralogists and collectors due to its unique properties and the fact that it is relatively rare.

In summary, Tielah is a rare green silicate mineral that is typically found in metamorphic rocks. It has a hardness of 6.5 to 7 on the Mohs scale, a specific gravity of around 3.2 to 3.3, and perfect cleavage. It is not commonly used in industry but is sometimes used as a gemstone and is of interest to mineralogists and collectors.