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TOUCH STONE BEAD 16.45 CARATS 0355-3
- UGS
- Dimensions (mm)
- x x mm
- Poids (cts)
- Taper
- Bead
- Couleurs
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DESCRIPTION:
GEM TYPE: TOUCHSTONE BEAD, HOLE DRILLED FOR NECKLACE.
WEIGHT: 16.45 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: 16.45 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 Australia | Expédition dans le reste du monde |
|---|---|---|
| FedEx | $12.00 / 3 | $39.00 / 10 |
|
Australia
FedEx bénéficie d'une remise de $12.00 sur les commandes contenant 2 ou plus d'articles
Reste du monde
FedEx bénéficie d'une remise de $39.00 sur les commandes contenant 2 ou plus d'articles
|
||
| Registered Shipping | $9.00 / 7 | $16.00 / 21 |
|
Australia
Registered Shipping bénéficie d'une remise de $9.00 sur les commandes contenant 2 ou plus d'articles
Reste du monde
Registered Shipping bénéficie d'une remise de $16.00 sur les commandes contenant 2 ou plus d'articles
|
||
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PositifBeautiful piece
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Positif
Beautiful piece
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Positif
Beautiful 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
Paid and shipped - no feedback left after 100 days
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Positif
Paid and shipped - no feedback left after 100 days
