What Is Faden Quartz, and How Does It Form?
Faden quartz crystals is a descriptive term for a tabular group that usually runs through the inner part as a white thread or with a string-like zone. Faden is a German word for “thread”. They are found in Europe, Pakistan, Russia, and Arkansas. Pakistan Faden quartz is a famous quartz gemstone around the world.
They are found in areas of lower metamorphism where cavities are growing in the rock. As these zones expand, they break down quartz crystals (repeatedly), and healing and regrowth involve liquids and gases (white threads). The edges of the crystal grow rapidly and add liquid to the center of the crystal.
Faden Quartz crystals
When the Persians begin to open, the quartz crystals inside the host rock will break. In a silica-rich solution, this rupture will heal instantly, forming a crystal attached to the walls of opposite rocks and bridging the new opening. As Fisher continues, the crystal also breaks and heals. Because growth is much faster on fractured surfaces than on the face, and because the opposite cone leads to smaller regular faces on fractured surfaces that do not fully match, some growth is crystalline. Repeated rupture and healing leave a stain of liquid and gas in the crystal: a white thread, “Faden”. In rare cases, the fade is covered with chlorite, which beautifully shows that the plate pattern now began indeed as a thin thread.
Quartz stone
The thread is best seen in crystals growing parallel to the wall, as the growth rate is usually larger than the crystal C-axis (from tip to tip). The Quartz stone usually assumes a platy shape. Faden’s quartz crystals that stood for the walls, so that the tips point to the rock wall, should not be desecrated. The thread is usually straight, but depending on the movement of the walls of the opposite rocks, it can also be bent, twisted, or obstructed.
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