Sorry for the tectonic thread drift, but can any of you metallurgists/chemists/engineers tell me what advantage BASALT might have in ski construction?
I'm an on-hill rep for Rossignol and I know that a number of their ski models in the last couple of years have featured basalt in the recipe. My vague understanding is that the basalt is chopped up into fibers and then mixed somehow with the rest of the goop that makes up the innards of a ski.
I'm just not exactly sure what characteristics basalt might have that make it good to have in a ski?
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Some info from Dynastar, which apparently also uses basalt in some skis.
"Basalt fibre has many properties but it is used in skis for 3 main reasons: - Absorption of vibrations, - Biological stability, - Aesthetic appearance. Basalt fibre improves stability, for gentler ski-snow contact and a «quieter» ski. This is why it's often used for racing skis, especially for the speed disciplines. You'll find it in the DYNASTAR Race Expert range of skis."
Here's something on Fischer, which apparently used basalt in some cross country skis: