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  1. Replies
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    Sapphire colours vary, but red is ruby, even if...

    Sapphire colours vary, but red is ruby, even if synthetic.

    "A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality...
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    Recognising you're quite new at the forum,...

    Recognising you're quite new at the forum, hopefully I won't cause offence - I recommend you start a new thread and post some images!
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    TBH I have only limited experience working with...

    TBH I have only limited experience working with fluorite to date, but I do know it can be very tricky to work with: it has a strong cleavage and fractures readily. I suspected a couple of slices I...
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    There is no maximum, other than the aesthetic....

    There is no maximum, other than the aesthetic. Opals contain water and can suffer from drying and crazing so the thicker the better (to a point!)

    You are doing the right thing by cutting to the...
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    I'd recommend to steer clear of the dyed agates;...

    I'd recommend to steer clear of the dyed agates; it is perfectly good to be inspired on them but leave them on the shelf with the rest of the 'tack'.

    Natural agates are a different kettle of fish...
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    Bullet cases... 22 are not far off "grain"

    Bullet cases... 22 are not far off "grain"
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    Excellent - love it!

    Excellent - love it!
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    sorry, no longer available :-"

    sorry, no longer available :-"
  9. TBH I wouldn't waste any hard-earned getting a...

    TBH I wouldn't waste any hard-earned getting a gemologist's opinion on quartz / peridot. Both are cheap enough and it is hard-times indeed if anyone is 'pasting' these stones! Both gems can be picked...
  10. Silicates such as quartz might change colour -...

    Silicates such as quartz might change colour - towards orange/red however they frequently crack on heating so it should be either a cheap or unimpressive stone to start with and would be a risk to...
  11. Neither of those stones are commonly synthesized...

    Neither of those stones are commonly synthesized or imitated. Just from your description of what you believe them to be I would suggest they are legit. Only if there is something very unusual /...
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    Hi Pat, glad to hear you're doing ok. Plenty...

    Hi Pat,

    glad to hear you're doing ok. Plenty of exercise / swimming and you'll soon be needing your zzz's. Take care.
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    Yes it is a well known phenomenon in this stone,...

    Yes it is a well known phenomenon in this stone, together with garnet and spinel; of course only some stones.

    See here
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    Maybe the decimals are not showing / were not...

    Maybe the decimals are not showing / were not typed and therefore I would go with 83mm or 8.3 cm

    That would be in keeping with the dimensions in inches.

    Eighty three centimetres just isn't 3.25...
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    Lovely! How does the silver heart adhere to...

    Lovely!

    How does the silver heart adhere to the wooden one if you don't mind my asking?

    I made my eldest boy a cherry wood plectrum from home grown wood and cut it like a cab.
  16. There's a burr coming out of the hole to the RHS...

    There's a burr coming out of the hole to the RHS of 'L': is that what you mean?

    If so, then in all likelihood, this may have been encouraged out of the hole by tumbling, but would have existed...
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    Natural stones are not synthetic, but found or...

    Natural stones are not synthetic, but found or mined from the groundd. They may then go on to be treated, heated, filled.
    There is a trade-off between gems that are imperfect and unenhanced in...
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    Ok... just an offer of help if you needed it. Let...

    Ok... just an offer of help if you needed it. Let us know how you go.
    On the train last week it was so packed there wasn't room to look around let alone enough for oxygen. In order not to violate...
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    Hi China, I have found some small amethyst...

    Hi China,

    I have found some small amethyst cabs. They are oversize for your desired diameter; the height looks about right but I couldn't guarantee it. If you wish I could reduce the diameter down...
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    Round cut stones lack the depth, but this could...

    Round cut stones lack the depth, but this could be corrected for, possibly by lifting the seat in a tube or does it need to be hemispherical from the surface?

    Tube set round sapphire?...
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    I'm interested in why you need spheres and not...

    I'm interested in why you need spheres and not e.g hemi-spheres. At 1.5mm diameter would a rounded cabochon not suffice (i.e. you !need! spheres.

    Given a quick search for this unusual request, I...
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    For degreasing try acetone (but not with dyed...

    For degreasing try acetone (but not with dyed stones).
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    If you don't glue them in you will have the...

    If you don't glue them in you will have the opportunity to learn good technique whilst working on relatively cheap cabochons.

    Alternatively go ahead with glue. Either use epoxy or CA (superglue)....
  24. Thread: Pebble Dash

    by metalsmith
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    Thanks Dennis, it was the apparent contradiction...

    Thanks Dennis, it was the apparent contradiction of thin metal together with stone setting that my mind had at odds. All clear now, thank you.
  25. Thread: Pebble Dash

    by metalsmith
    Replies
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    It's different & I like that for starters. Black...

    It's different & I like that for starters. Black diamond is good too.

    Regarding your description of the process, I'm not sure if you're intending to talk only to the knowledgeable, but I feel I'm...
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