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Blowing Quartz? Answered

I know you can make pipes and other stuff out of glass by a technique called glassing blowing could you do the same with quartz?


Please, how to reduce the diameter of a quartz tube and how to increase it?

I made a couple dab straws. I spoke with a trained scientific blower. He said cover all your skin and wear two pairs of glassblowing glasses. Put sunscreen on any exposed skin.


Im doing a test tonight with 12 mm quartz tube on my Glassblowing torch with an oxy propane mix. I'll post results.


3 years ago

looks like it's been a while since you were curious, but I do quartz glass blowing for a large company, and you do need hydrogen and oxygen. It's doesn't have much play like Pyrex does but I find it easier to control. As for using quartz out of a rock quarry, I don't think so but I can't be positive.


6 years ago

carving quartz with a rotary tool like a Dremel might be a lot easier. Probably safer also.

Have you any idea how HARD quartz is ? ;-)

We have a quarts mountain here in NV that used to be mined
during the war for crystals for radio oscillators.

Today anyone can go there and carry a bucket of quartz home each day.

Is this the same material that could be used to make Q-glass ?

it is definitely possible as i am currently doing an apprenticeship in scientific quartz glass blowing. you are right it is a lot harder then borosilicate or soda-lime glass as its working temperature is a lot higher than both of these glasses. it also hardens alot quicker than these types of glasses which also poses a challenge. however in regards to the hydrogen flame, the hydrogen flame is used because it is alot cleaner than propane as it only produces water when heating glass. a propane flame can be used and is sometimes better to use than a hydrogen flame depending on the process. the reason quartz is like this is because it is 99.9% silica whereas the other glasses have other chemicals mixed in to lower the melt and working temperatures which also effects the optical properties of the glass :)

Yes its possible to blow quartz like glass, and its being done. Glass is made with silica, which is Quartz sand, so even in glass production they are technically blowing quartz. ;)

Mmm. No, not really. Glass is a mixture of several ceramics which react to form a material with a surprisingly low melting point (well, relatively) . Yes, silica sand is a component, but so is sodium carbonate (soda) and common salt too.

For all intents and purposes, soda-lime glass is "molten" by about 1000 C. Quartz melts at 1700-ish !

The machines I make for measuring it will make glass run like water at the maximum temperature the instrument works at.


You're correct that my example was a little off, but blown quartz is being done, as per the link.

Melting point 1700 deg C

As far as I know, its perfectly doable, but a lot harder than glass- not least because I think you need to do it with a hydrogen flame.