Synthetic, Imitation And Treated Gemstones Paperback - 1997
by O'Donoghue, Michael
From the publisher
The book describes a wide range of gem and ornamental materials, species by species, opening up the secrets they sometimes conceal. The book reveals when gemstones can be artificially manufactured, when they can be synthesized or cleverly imitated by other materials - like glass - and when their colour has been enhanced, permanently or for a short time, by the hand of man. Readers are told and shown what the tell-tale features are and learn that while nothing is quite what it seems there are ways in which they can spot give-away signs without needing to consult a laboratory.
The book is ideal for the jeweller, the auction house expert, the gemmologist and the mineralogist who will find a new slant on the materials that begin a somewhat less glamorous life as rough specimens.
Details
- Title Synthetic, Imitation And Treated Gemstones
- Author O'Donoghue, Michael
- Binding Paperback
- Publisher Butterworth-Heinemann
- Date 1997-11
- ISBN 9780750631730
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Book Conditions Explained
Biblio’s Book Conditions
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As NewThe book is pristine and free of any defects, in the same condition as when it was first newly published.
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Fine (F)A book in fine condition exhibits no flaws. A fine condition book closely approaches As New condition, but may lack the crispness of an uncirculated, unopened volume.
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Near Fine (NrFine or NF)Almost perfect, but not quite fine. Any defect outside of shelf-wear should be noted.
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Very Good (VG)A used book that does show some small signs of wear - but no tears - on either binding or paper. Very good items should not have writing or highlighting.
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Good (G or Gd.)The average used and worn book that has all pages or leaves present. ‘Good’ items often include writing and highlighting and may be ex-library. Any defects should be noted. The oft-repeated aphorism in the book collecting world is “good isn’t very good.”
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FairIt is best to assume that a “fair” book is in rough shape but still readable.
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Poor (P)A book with significant wear and faults. A poor condition book can still make a good reading copy but is generally not collectible unless the item is very scarce. Any missing pages must be specifically noted.