The coolies, earth-coloured and mute, crouched reverently some twenty or thirty yards away, and the Babu, the slack of his thin gear snapping like a marking-flag in the chill breeze, stood by with an air of happy proprietorship.
Inhaling crystalline silica can lead to serious, sometimes fatal illnesses including silicosis, lung cancer, tuberculosis (in those with silicosis), and chronic obstructive pulmonary disease (COPD). In addition, silica exposure has been linked to other illnesses including renal disease and other cancers.
The following is a list of the more common types of silicate glasses, and their ingredients, properties, and applications: Fused quartz, also called fused silica glass, vitreous silica glass, is silica (SiO2) in vitreous or glass form (i.e., its molecules are disordered and random, without crystalline structure).