The glass pens made by artisan Takeda Mio (竹田海緒) are made of borosilicate glass, which has more thermal shock resistance than other hard glasses. Unlike soda glass which has a relatively low melting point, borosilicate glass melts at 820°C. The glass is not melted in a kiln, but processed individually above an oxygen torch and then shaped while it is malleable, much like the process of candy making. Borosilicate glass is light and durable, making it ideal for glass pens.
This gold leaf pen is made starting with a rod of black glass. Extra-thick gold leaf is folded into that glass, which is then coated in a layer of transparent glass. While the procedure is easy to explain, it is difficult to get right. If it is not processed quickly, even the thickest gold leaf will melt and will not be able to be used.
Takeda Mio graduated from the Glass Program from Tama Art University's Department of Crafts. She is a glass artist from Kikai Island in Kagoshima Prefecture, Japan.
Note: The Ink Pitcher from the second photo is not included!
- Material: Glass
- Color: Clear
- Length: 17cm (6.7in)
- Nib Size: ~0.5mm
- Box Included
- Handmade in Japan