Tablet binders include lactose powder, sucrose powder, tapioca starch (cassava flour) and microcrystalline cellulose. The crystalline region is isolated to produce microcrystalline cellulose. An amorphous silicon (a-Si) solar cell is made of non-crystalline or microcrystalline silicon. Silica occurs in 3 forms&colon; crystalline, microcrystalline (or cryptocrystalline) and amorphous (non-crystalline). As the oxygen levels continuously shift, the magnetite beds interlayered with amorphous/microcrystalline quartz (i.e. jasper). At least one case of an allergic reaction to microcrystalline cellulose has been documented. It was used as a microcrystalline aqueous suspension by intramuscular injection. Chalcedony is a microfibrous (microcrystalline with a fibrous structure) variety of quartz. First, microcrystalline graphite is treated with an acidic mixture of sulfuric acid and nitric acid. It is a highly hydrophobic microcrystalline powder. Sodium borohydride is an odorless white to gray-white microcrystalline powder that often forms lumps. The latter can also be obtained by recrystallization from microcrystalline salts. Renaissance Wax is based on more stable microcrystalline waxes refined from crude oil. In solid-phase media, such as crystals, microcrystalline powders, gels, anisotropic solutions, etc. Geologists use chert as a generic name for any type of microcrystalline or cryptocrystalline quartz.