Glass Blocks
A hollow block of glass, usually translucent with textured faces; has relatively low thermal-insulation and low fire-resistance value; used in non-load-baring walls. *
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Granite
1. An igneous rock having crystals or grains of visible size; consists mainly of quartz, feldspar, and mica or other colored minerals.
2. In the building stone industry, a crystalline silicate rock having visible grains; this includes gneiss and igneous rocks that are not granite in the strict sense. *
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Grout
1. Mortar containing a considerable amount of water so that it has the consistency of a viscous liquid, permitting it to be poured or pumped into joints, spaces and cracks within masonry walls and floors, between pieces of ceramic clay, slate and floor tile, and into the joints between performed roof deck units.
2. In foundation work, mixtures of cement, cementsand, clay or chemicals; used to fill voids in granular soils, usually by a process of successive injection through drilled holes. *
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