Greetings, Bw Teter here with questions about making filaments....

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    Greetings
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The discussion centers on the interest in creating filaments from basalt rock, with a specific inquiry about potential applications, such as for light bulbs. Participants seek clarification on the desired conductivity and resistance properties for the filament and the rationale behind choosing basalt rock. There is also a mention of rockwool, a horticultural media made from basalt, which involves a melting and spinning process to create fibers. The conversation emphasizes the need for more details regarding the intended use of the filaments. Overall, the thread highlights the technical considerations and applications related to basalt-based filament production.
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Im interested in making filaments out of basalt rock.
 
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Bruce Teter said:
Im interested in making filaments out of basalt rock.
Welcome to the PF.

Can you say (a lot) more about your application? What kind of filament? Like for light bulbs? Or some other application?

If for light bulbs, what kind of conductivity and resistance are you looking to achieve. And why basalt rock in particular? Do you live near a quarry? :smile:
 
Do you mean this?

https://www.hydroponics.net/learn/rockwool.php
Rockwool is a horticultural growing media made from the natural ingredients Basalt rock and Chalk. These are then melted at 1600° C into a lava which is blown into a large spinning chamber, which pulls the lava into fibers like "cotton candy." I:welcome:
 

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