Rohan Bernett wrote:
>I know the IORs of water and glass are 1.33 and 1.5, but there are a number
>of materials that it would be handy to know the IORs for.
>
>Perspex
>PET (plastic, recycling number 1)
>Pyrex
>Quartz glass
>
>If anyone can give the IORs of these substances (and any others) please
>reply to this message with them.
>
>Rohan _e_ii
>


Try
http://matweb.com
I have found it useful for general material specs.
Below is what I found for quartz.
Fused Quartz = 1.46
Fused Quartz Lamp tubing = 1.458
Alpha Quartz  1.544, 1.553

There is a Beta  Quartz but it looks like God released that version
prematurely as it doesn't have usefull optical qualities :).
Tony

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