Discover Top Posts Tagged with #glass making

Felt great to get back at enameling, this time I experimented with making a gradient and adding in some slices of cane that I made myself! It feels good to look at see that even though I go long stretches without getting to make anything, I am still learning and building skills.

#art #glass art #enamel #vitreous enamel #glass making #enamel jewelry

The History of Glass and Glass Making

Glass is an amorphous solid, often transparent material. The amorphous part means that the atoms aren't aligned in any particular order. It is formed when molten silicon containing compounds are cooled rapidly. It is fairly easy to shape and is inert, meaning it won't interact with most chemicals, making it a good container for many things.

By Ji-ElleIt feels nice and warmIt feels like a love storm - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=15527635 By Stickpen - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=10689767 By H. Raab (User:Vesta) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=488611 and By H. Raab (User:Vesta) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=486872

Natural glass comes in a few forms, such as obsidian from volcanoes, fulgurites from lightning strikes, Moldavite from meteorite impacts in central and eastern Europe, Libyan desert glass from meteorite impacts in the Sahara, and the more general impactite as the name for glass created by meteorite impacts, and Edeowie glass, which we're still trying to figure out what created it.

By Nsingapuri - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=78429853

During the Stone Age, many societies used tools made from obsidian glass, knapped into blades for cutting and traded widely given the limited sources, it being only found near volcanoes, and the wide spread of the tools we find. As metal working began to grow in the Bronze Age, resulting in beads being found in the slag and the creation of faience, a type of glazing that used quartz that is heated so it becomes glass-like used by the Egyptians.

source: https://www.metmuseum.org/met-publications/studies-in-early-egyptian-glass

True glass making likely started in the Late Bronze Age in Egypt and Megiddo. Archaeologists have found glass ingots of various colors, vessels that mimicked semi-precious stone carvings, and deliberately made beads. Soda ash (sodium carbonate) from plant ash was added to sand to create glass which was then extracted into a rope and formed into vessel by coiling it around a clay or sand shape then reheating it multiple times to make the layers fuse together. Beads were more easily formed this way. Colored glass was made by various metallic oxides and then applied to vessels by drawing the glass into finer lines and then rolling the vessels or beads until the surface was smooth, a process called marvering. Handles and feet were made and applied separately. Much of the rest of glass production was done when it was cold, taking techniques from stone working to finish the glass when it was cooled. These techniques were closely guarded secrets of various palace controlled industries centered around Western Asia, Crete, and Egypt. By the 15th century BCE, Linear B script has been found that translates to 'workers of lapis lazuli and glass' (𐀓𐀷𐀜𐀺𐀒𐀂, ku-wa-no-wo-ko-i).

By SBAUmbria - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=33260156

The Late Bronze Age Collapse brought glass making to a near complete halt until the 9th century BCE in Syria and Cyprus when they discovered how to make colorless glass. Ashurbanipal's library contained instructions on how to make glass from about 650 BCE. Egypt's glass industry wasn't revived until the Ptolemies took over in 305 BCE. Glass making techniques were experimented with resulting in advancement, including 'slumping' (draping not quite molten glass over a form to make dishes), millefiori, where colored glass canes were sliced into small pieces and then fused together to create a mosaic-like tile effect. Glass blowing was discovered during the 1st century BCE, making glass vessels much easier to produce and 'inexpensive compared to pottery vessels'. Clear glass, which required the addition of manganese dioxide, was discovered in Alexandria around 100 CE, which led to the development of window glass (though the technique to make them made them quite poor optically) with windows found in the wealthiest villas in Pompeii and Herculaneum.

source https://link.springer.com/article/10.1007/s10437-021-09467-1

In India, the earliest glass is a brown bead dated to about 1700 BCE though widespread evidence of glass usage didn't occur until the 3rd century BCE when large quantities of jewelry and vessels were discovered in Taxila. The first site to produce glass in India is Kopia in Uttar Pradesh which was apparently in use from the 7th century BCE to the 2nd century CE. Based on the chemical composition, India produced its own glass rather than importing it from the Near East or China.

By Augusthaiho - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=78022227

China was slow to adopt glass, preferring ceramics and metal working. The first evidence of glass is from the Warring States period (475-221 BCE), though it remained rare and mostly beads and imported rather than locally produced. During the Han Dynasty (206 BCE-220 CE), local glass production began and importation decreased greatly. After the Han Dynasty, glass production decreased until the 4th and 5th centuries CE.

#glass #glass making #history #ancient egypt #ancient india #ancient china #ancient near east #ancient history

Custom Scooby Doo waterpipe / bong ! Dm on IG or email [email protected] for your own!

Any other autistics very into glassware? Collecting blown glass sculptures? Loves feeling the texture of beaded glass jewelry? Obsessed with historic stained glass windows in churches? Mesmerized by uranium glassware any time you're in an antique store? Is anyone else have a glass special interest?