In Roman times and now also bracelets are so popular
In Roman times and now also bracelets are so popular. Roman bracelets shared many of the design patterns. In the designing of their jewelry The Roman's were very creative. However they still borrowed from Greek motifs. This includes necklaces and earrings from that era.
Bracelets made of twisted coil with lion head ends were common place. As it were the two part bracelets ending with a pair of lion heads. The ever-popular ball earrings from that era were nicely matched with a ball style bracelet. The Heracles knot bracelet is recognized as a Roman era piece. Palmettos, fleeing dogs and acanthus leaves, all of Greek origin, were often seen in the designing of Roman jewelry. During roman times Engraved bangles and snake bracelets were very popular. The idea took favor and the fashion spread far and wide.
How Durable is My Gemstone Jewellery?
First of all a note about the hardness and therefore relative durability of gemstones. To measure hardness, the jewellery industry uses the Mohs scale. This gem-trade standard, conceived by Friedrich Mohs in 1812, measures the ability of a gem or mineral to resist abrasion damage.
Diamond at 10 is the hardest whereas talc at 1 is the softest. Popular gemstones like amethyst and citrine register 7 whereas rubies and sapphires register 9. Most of us come off the beach on the first day with the 3 sís all achieved - rings caked in sand, sea-salt and suntan lotion. Nude sunbathing, as far as silver and gold jewellery is concerned, is a must! Remember also that sand will scratch the surface of precious metals.
A diamond is a form of carbon
A diamond is a form of carbon that was created deep within the core of the earth more than 3 billion years ago and brought to the surface by volcanic eruption. In diamond, each carbon atom is bonded to four other carbon atoms in a tetrahedral structure, like a pyramid.
Each link or bond is the same length, and the tetrahedral formation is therefore completely regular. Theoretically a perfect diamond crystal could be composed of one giant molecule of carbon. After the magma cooled, it solidified into kimberlite, where the precious rough diamond is still found today. It is the strength and regularity of this bonding which makes diamond very hard, non-volatile and resistant to chemical attack.