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TOUCH STONE BEAD 17.60 CARATS 0355-5
- UGS
- Dimensions (mm)
- x x mm
- Poids (cts)
- Taper
- Bead
- Couleurs
-
DESCRIPTION:
GEM TYPE: TOUCHSTONE BEAD, HOLE DRILLED FOR NECKLACE.
WEIGHT: 17.60 CARATS
SIZE: 24 X 13 X 10 MM
COLOUR: BLACK
CLARITY: OPAQUE
1 PIECE
ADDITIONAL COMMENT:
A TOUCHSTONE IS A SMALL TABLET OF DARK STONE SUCH AS FIELDSTONE, SLATE OR LYDITE, USED FOR
ASSAYING PRECIOUS METAL ALLOYS. IT HAS A FINELY GRAINED SURFACE ON WHICH SOFT METALS LEAVE A
VISIBLE TRACE.
DRAWING A LINE WITH THE GOLD ON THE TOUCHSTONE WILL LEAVE A VISIBLE TRACE. THE TRACE WILL
REACT DIFFERENTLY TO SPECIFIC CONCENTRATION OF NITRIC ACID, THEREBY IDENTIFYING THE QUALITY
OF THE GOLD. THUS 18 CT PURITY IS NOT AFFECTED BUT 14 CT GOLD WILL SHOW CHEMICAL ACTIVITY.
- UGS
- Dimensions (mm)
- x x mm
- Poids (cts)
- Taper
- Bead
- Couleurs
-
DESCRIPTION:
GEM TYPE: TOUCHSTONE BEAD, HOLE DRILLED FOR NECKLACE.
WEIGHT: 17.60 CARATS
SIZE: 24 X 13 X 10 MM
COLOUR: BLACK
CLARITY: OPAQUE
1 PIECE
ADDITIONAL COMMENT:
A TOUCHSTONE IS A SMALL TABLET OF DARK STONE SUCH AS FIELDSTONE, SLATE OR LYDITE, USED FOR
ASSAYING PRECIOUS METAL ALLOYS. IT HAS A FINELY GRAINED SURFACE ON WHICH SOFT METALS LEAVE A
VISIBLE TRACE.
DRAWING A LINE WITH THE GOLD ON THE TOUCHSTONE WILL LEAVE A VISIBLE TRACE. THE TRACE WILL
REACT DIFFERENTLY TO SPECIFIC CONCENTRATION OF NITRIC ACID, THEREBY IDENTIFYING THE QUALITY
OF THE GOLD. THUS 18 CT PURITY IS NOT AFFECTED BUT 14 CT GOLD WILL SHOW CHEMICAL ACTIVITY.
| Fournisseur d'expédition | Expédition vers :pays | Expédition dans le reste du monde |
|---|---|---|
| FedEx | $12.00 / : jours jours | $39.00 / : jours jours |
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:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
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| Registered Shipping | $9.00 / : jours jours | $16.00 / : jours jours |
|
:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
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PositifBeautiful gemstone. Checked to be genuine Tourmaline. Color was light pink. I was hoping for a pinkish purple as in the pictures. Great transaction and prompt shipping. Thank you.
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Positif
Fast shipping And this Lapiz Lazuli necklace is beautiful. Fast shipping. this item was shipped from Australia to my home in the US less than four days!!
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Positif
Beautiful Bracelet. Such fast shipping!! I live in the US and this item was shipped to me from Australia and and I received it in less than four days!!
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Positif
This kings of stick is absolutely beautiful. Such fast shipping!! I live in the US and this item was shipped to me from Australia and and I received it in less than four days
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Positif
awesome thanks
