WELCOME TO THE PLANETARY HOME IMPROVEMENT STORE ︎︎︎ TO FIND A PRODUCT, PLEASE SCROLL DOWN ON THE HOME PAGE ︎︎︎ The home improvement store is a geological site on demand. Rockwool, Sheetrock, Quikcrete. Materials are processed into products, packaged, stockpiled, stacked, and sold across global DIY supply-chains, from Bauhaus to OBI and Hornbach. Basalt, gypsum, limestone. Material economies are severed from mineral entanglements with millennia of rock, fossil, plant, and stone. The store is the modern quarry. It takes 1 day to install drywall; it takes 299 million years to form gypsum. ︎︎ TO FIND A PRODUCT, PLEASE SCROLL DOWN ︎︎︎

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Present — Ordovician
Present — 485 MYA

75% Sand
15% Soda ash
10% Limestone 
A geology of glass takes us far beyond the material culture of modernity. Its transparency obscures a history of rocks and minerals that have been faulting and eroding since the Paleozoic Era to form sand. In glass, they gather once again, this time as a fragile, amorphous solid.

These geologic shards of “liquid sand” also reflect an industrial-era desire to standardize, purify, and expand material technologies and products for factory and everyday applications, as with the development of tempered (safety) glass in the mid-19th century, or float glass a century later.

While new glass continues to be specified around the world, recycled glass is in low demand even though it can be recycled endlessly without degrading. This is because of "contamination" of iron content in second-hand float glass, creating panes that are considered optically undesirable. A geological perspective might shift consumer norms of visual clarity toward an aesthetics of grainier, cloudier glass.

See also Fiberglass Insulation.

Melt ingredients ︎︎︎ mix to right proportion ︎︎︎ fly batch to a furnace heated to 1500°C ︎︎︎ fly composition into "float bath" ︎︎︎ leave it at 650°C as a solid ribbon shape ︎︎︎ add coatings ︎︎︎ annealing: allow glass to cool slowly to remove internal stresses ︎︎︎ inspect pieces (identify air bubbles, stresses, grains of sand, etc.) ︎︎︎ cut to retail size ︎︎︎ pack and ship

<taken from the CL-MaterialDatabase spreadsheet>