Search results
Results from the WOW.Com Content Network
Jet is around 75% carbon and 12% oxygen with sulfur and hydrogen making up most of the balance. [7] Other elements are found at trace level and the exact ratios varying with the source; for example, Spanish jet contains more sulfur than Whitby jet. [7] Jet has a Mohs hardness ranging between 2.5 and 4 and a specific gravity of 1.30 to 1.34
Due to large demand for jet, in Whitby , a large industry was established. [8] The fossilised material, jet was valued because it was lightweight, intense black in colour, durable, inexpensive and could be easily carved. [3] [10] Jet was used to design mourning jewellery such as bracelets, necklaces, brooches, cameos and pendants.
Cut steel was combined with precious and semi precious materials such as jet and pearls. [5] Alternatively plaques of Jasperware and Bilston enamel feature in some designs. [5] Plaques from further afield also appear to have been used with some appearing to come from Italy and Switzerland. [5]
For premium support please call: 800-290-4726 more ways to reach us
The Bulgari Tubogas, a house signature since 1948, takes center stage once more in a new fall collection.
For premium support please call: 800-290-4726 more ways to reach us
When jewelry containing sapphires or rubies is heated, those stones should not be coated with boric acid (which can etch the surface) or any other substance. They do not have to be protected from burning, like a diamond (although the stones do need to be protected from heat stress fracture by immersing the part of the jewelry with stones in the ...
Later Viking jewelry also starts to exhibit simplistic geometric patterns. [27] The most intricate Viking work recovered is a set of two bands from the 6th century in Alleberg, Sweden. [26] Barbarian jewelry was very similar to that of the Vikings, having many of the same themes. Geometric and abstract patterns were present in much of barbarian ...