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.
4. gneiss Gneiss is metamorphosed schist. It is a highly metamorphosed that is almost a granite. It differs from schist due to the lenses of feldspar between the mica layers. The minerals in gneiss may occur either as layers (foliation) or elongated in one direction (lineation).