How do you differentiate between Glass and Glass Fiber?

How do you differentiate between Glass and Glass Fiber?

 
How do you differentiate between Glass and Glass Fiber?

 Glass fiber (or glass fibre) is a material consisting of numerous extremely fine fibers of glass.
glass fibre has high tensile strength when compared to glass.
The composition differs slightly but not in large proportions contains more amount of silica based on the application.
Sizing (application of chemical) is done for conversion of glass to glass fibre.
cooling is done in stages for glass fibre where as for glass rapid cooling is done.
Fiber glass is tough because  fibre glass has criss cross glass fibres bonded by resin. During impact crack generated in glass propagates easily and the glass simply shatters but in case of fibre glass due to criss cross structure only some fibre may get cracked while others are sound. The crack cannot propagate easily in fibre glass.

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