Gels Reference Libraries
Silica Gel, made synthetically from sodium silicate, is granular, vitreous, highly porous form of silica. Silica is a naturally occurring mineral that is purified and processed into either granular or beaded form. It has a strong affinity for water molecules. Silica gel is commonly used as a desiccant where it is packed in vapor-permeable plastic in order to control local humidity in order...
- A handkerchief.
- Specifically— The legendary sweat-cloth; the handkerchief of St. Veronica, according to tradition miraculously impressed with the mask of Christ; also, the napkin about Christ's head (Johu xx. 7).
- In general, any miraculous portrait of Christ.