Gemstone Windows and Dark Patches: What to Look for in a Cut Gem

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AI-generated educational illustration. Conceptual only; not a photograph of an actual specimen or location. A coloured gem may have a pale, see-through centre or areas that look almost black. Both affect its appearance, but they do not have the same cause. What is a window? A window is an area where light passes through the gem instead of being returned towards the viewer. You may see the background through it, especially near the centre. Cutting angles and the material's refractive index—how it bends light—help determine whether this happens. There is no single ideal depth for every gemstone. Why dark patches need a closer look Darkness can have several causes. The material may absorb a lot of light. Some facets may reflect dark surroundings or the observer. Extinction is another cause, involving light that is not returned to the viewer after internal reflection. For that reason, calling every black patch “extinction” can be misleading. A simple viewing routine Look at the gem fac...
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What is Turquoise ??

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What is Turquoise?

Turquoise is an opaque, blue-green mineral that is valued as a gemstone for its unique color and pattern. It is formed from the weathering of copper-rich rocks and is commonly found in arid regions, such as the southwestern United States and Mexico.

Turquoise has been used for thousands of years by various cultures for decorative and spiritual purposes. It has been used in jewelry, pottery, and other decorative objects, and has been believed to have healing and protective powers by many ancient cultures.

Types of Turquoise

There are many different types of turquoise, each with its own unique characteristics:

  • Arizona turquoise - This type of turquoise is found in the southwestern United States and is known for its bright blue color and black matrix.
  • Persian turquoise - This type of turquoise is found in Iran and is known for its intense blue color and lack of matrix.
  • Chinese turquoise - This type of turquoise is found in China and is known for its bright blue color and intricate matrix patterns.

Turquoise Jewelry

Turquoise is a popular material for jewelry due to its unique color and pattern. It is often used in Native American jewelry, as well as in modern designs. Turquoise is often paired with silver to create beautiful and intricate pieces.

Turquoise Jewelry

Turquoise Pottery

Turquoise has been used for centuries to create beautiful and unique pottery. It is often paired with other colors, such as red and black, to create intricate designs and patterns.

Turquoise Pottery

Turquoise Carvings

Turquoise is a popular material for carving due to its unique color and pattern. It has been used to create a wide variety of decorative objects, such as figurines and sculptures.

Turquoise Carvings

Turquoise Spiritual Beliefs

Turquoise has been believed to have healing and protective powers by many ancient cultures. It has been used in spiritual ceremonies and was often worn as a talisman for protection.

Turquoise in silver ring
Turquoise in silver ring 


Turquoise Spiritual

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