Once the skin stretching is completed, you'll most likely have more surgery to replace the tissue expander with a permanent implant. Surgery is usually scheduled about 4 to 6 weeks after the last amount of liquid has been added to the expander.
Quartzite. Images: Background: Quartzite is a nonfoliated metamorphic rock that formed by the metamorphism of pure quartz sandstone. The intense heat and pressure of metamorphism causes the quartz grains to compact and become tightly intergrown with each other, resulting in very hard and dense quartzite.uartzite. Images: Background: Quartzite is a nonfoliated metamorphic rock that formed by the metamorphism of pure quartz sandstone. The intense heat and pressure of metamorphism causes the quartz grains to compact and become tightly intergrown with each other, resulting in very hard and dense quartzite.
1 Quartzite falls into the classification of a metamorphic rock. 2  Its original material, sandstone in this case, has been altered by pressure and heat that transforms it into quartzite.3  Buried deep inside the earth the sandstone adapts to the change in conditions by altering its texture and composition. Its original material, sandstone in this case, has been altered by pressure and heat that transforms it into quartzite. 2  Buried deep inside the earth the sandstone adapts to the change in conditions by altering its texture and composition.