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Calcite Dichroscope

This topic contains 1 reply, has 2 voices, and was last updated by Profile photo of royjohn royjohn 11 hours, 55 minutes ago.

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  • #234814
    Profile photo of farkas1111
    farkas1111
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    I’ve been searching for dichroscopes for a while ranging in price from $125(GIA) to $20. Most of them seem generic with no Manufacturer Info. Any recommendations or reviews on what’s a good one and where to purchase? Thanks

    #238695
    Profile photo of royjohn
    royjohn
    Participant

    From reports I see on line, the cheap Chinese calcite dichroscopes are fine, so you can go with whichever suppliers seems best/cheapest. Get a return guarantee and try it out. These are simple, a piece of transparent calcite and a lens, so they should all be pretty similar if the calcite is of decent quality, and such is not difficult to find. The London dichroscope, made with crossed polarizers, is better for viewing parcels at a distance, but I don’t find any of these for sale on line. You could pretty easily make one from some polaroid sheet or two polarizing sunglass lenses, though. About $25 or so should do it for the calcite dichroscope on Ebay. There are offers for a dichroscope, a triplet loupe and a Chelsea filter for about $55, and that might be a good deal…compare prices.

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