Patina is what is revealed during an oxidation process. It can occur on many elements such as metal, stone, wood, and even leather. In many instances, it is an aesthetic effect that gives a sense of character to an object. For example, in antique and vintage objects the patina can accentuate the age that is appreciative of its history.
Patina is it a type of tarnish that occurs on copper based metals. Brass tarnishes because of its copper-alloy element. Tarnish occurs during exposure to oxygen and sulfides. Patina and tarnish are both examples of corrosion on metals.
The patina effect on this copper ring was created using ammonia and salt. Another way of achieving a patina effect is using liver of sulfur. Based on the metal, every oxidation process produces a unique effect. In jewelry, this effect is appreciated in multiple ways. The bracelet, pictured below, was oxidized using boiled eggs. Because of the red tones of the copper, the tarnish has a warmer effect than it does with silver.
Most oxidation processes, especially when used on ornate items, give depth to any design. The artistic effect pulls out the detail in some of the most intricate patterns. For the wire and stone designs in the Kaleido store, the oxidation is the best final touch because it embellishes, with natural shadows, the beauty of lines and shapes that would otherwise not be as noticeable.
Copper makes the beautiful and much admired Rose Gold. Copper is usually considered the lower rank among the top three metals. Gold, silver and then…copper.
A few historical details about copper: • it is prehistoric – this means it existed before written records • copper gets its name from Old English, ‘coper’ which was born out of the Latin, ‘Cyprium aes’ which means a metal from Cyprus1 • on the Periodic Table, the copper symbol is Cu, atomic number 29 • humans have been working with copper for more than 8,000 years2
Much in the way that Rose Gold is a percentage of yellow gold, silver and copper there are many items including, the copper penny, that are now copper alloys. Copper is a very malleable metal and can be made into a stronger metal by mixing with tin, zinc and other metals to create an alloy. Copper is a highly used electrical conductive because it is ductile and thermal resistant.
Not only is copper useful in instruments for everyday use but it has tremendous health benefits. Do you take a multi-vitamin? Check the label for ingredients. Copper gluconate is in most common daily multi-vitamin supplements. According to “Medical News Today,” copper benefits cardiovascular health, neuron signaling, immune function, osteoporosis, collagen production, arthritis and antioxidant action.3 Of course all of this is good when taken in moderation. Excessive cumulation of copper in the blood stream can reap copper toxicity. This is rare but, it can cause liver damage among other side effects.
Why does copper irritate the skin on some people and not on others?Great question! First, copper salt can be a natural irritant to the skin. When we sweat we create a reaction with the copper salt and our skin. Also, skin may turn green when wearing natural copper and this is a normal reaction to sweat. It is not harmful but if your skin starts to itch and develops a rash then discontinue wearing the copper. Many people have different reactions to different metals and much of this has to do with what is going on inside your body and the added mineral next to the pores of your skin. There are some who can’t wear sterling silver either.
In the book, “Copper and the Skin,” it states that much of the research that has been done on the impact of wearing copper and its “efficacy of dermal assimilation of copper in arthritic and rheumatoid conditions by skin contact … have been few, poorly conducted … and mostly subjective evidence of benefits to be expected by mere skin contact with the metal.”4 It also goes on to examine that the process of the salts in copper and how those salts interact with the “micro-enviroment” (eg. sweat from the skins pores) are unpredictable. In other words, everyone is different in how their skin will react to different metals. Your best bet is to try some and see what happens. You won’t die from it but, your skin may become itchy and swell a bit. Then you will know you can’t wear pure, natural copper.
Copper quintessence is warm with the color of a radiant sunset.
Copper adds depth when adjoined with silver, gold/brass. It is a versatile substance from the earth given to us. See the link below from the Britannica website that delves into some ancient ruins. This brings a deeper perspective to a common mineral element.
Kaleido Wire and Stone, basically, me, myself and I, is going on a journey with copper in creating designs of chain maille and wired stone. Some of the designs will be bare copper which means there is no seal or clear coat enamel protectant. In many cases, I use a polymer-based resin seal instead of enamel which will be stated in the listing of the item.
Tidbit for hobbyists/crafters: There is a lot of copper wire sold in art and hobby stores that is already sealed and this is good wire to work with if you have questionable allergies but, you also have to be careful to understand that when working the wire, any nicks, cuts or abrasions will penetrate the protective layer of clear coat seal.
Turritella Agate or Turritella Fossil is what this stone is usually called in the “market” and by “market” that means the jewelry makers and gem and mineral wholesalers. This name is actually incorrect. When it was initially discovered this material was thought to be the spiral-shaped gastropod (snail), turritella. What it really is is a freshwater snail called, Elimia tenera, which belongs to the Pleuroceridae family. The photo below shows the actual turritella (fossil shells). Personally, I wouldn’t know the difference but, what makes it important is that elimia tenera is extinct. The turritella is still found along the coastline of beaches.
Photograph of a belt buckle made from chalcedony with fossilized Elimia tenera shells (formerly Goniobasis tenera and incorrectly Turritella) from the Eocene Green River Formation, Wyoming, USA. Belt buckle made and photograph taken by Thaddeus P. Bejnar, in the workshop of Waldemere Bejnar.