77 Pieces Lot of Faden Quartz Crystals/Specimens at Whole Sale Price

  
Very aesthetic and delicate Faden Quartz Crystals/ Specimens from Wanna Waziristan, Pakistan. Total Number of Big and Small Crystals are 77. Very suitable for collectors, resellers. Faden quartz forms in fissures in the host rock that widen slowly and steadily. Quartz crystals inside the host rock will rupture when the fissure opens. In a silica rich solution, this rupture will heal quickly, forming a crystal that is attached to the opposing rock walls and bridges the new opening. While the fissure continues to open steadily, the crystal will also continue to crack and heal. Because growth is much quicker on fractured surfaces than on regular faces and because it leads to small regular faces on the opposite conchoidal fracture surfaces that do not perfectly match, some of the growth solution is included in the crystal.

The repeated rupturing and healing leaves a scar of liquid and gas inclusions in the crystal: a white thread, the "faden". In rare cases, the faden is covered by chlorite, which demonstrates beautifully that a now platy specimen did indeed start as a thin thread (see third head photo). The thread can be seen best in crystals that grew parallel to the wall, because the speed of growth is usually larger along the crystals c-axis (from tip to tip).

These faden quartzes usually assume a platy shape. Faden quartz crystals that grew perpendicular to the walls, so that the tips point to the rock wall, do not get platy. The thread is usually straight, but depending on the movement of the opposing rock walls, may also be curved, jagged or interrupted.

Faden quartz occurs in extension fissures in different environments, most commonly in Alpine-type fissures. They often form curtain-like groups of intergrown crystals. We have some best minerals and crystals for you from Pakistan and Afghanistan, We put all our efforts to bring high grade minerals from Pakistan & Afghanistan mines. Our specialty is Tourmaline, Morganite, Aquamarines, Kunzite, Brookite and Rare Minerals including Amphibole Quartz. This item is in the category "Collectibles\Rocks, Fossils & Minerals\Crystals & Mineral Specimens\Crystals". The seller is "rockandmineralco" and is located in this country: PK. This item can be shipped worldwide.

1. Shape: Natural
2. Featured Refinements: Quartz Crystal