Stone Size: 18*7mm
The stone name opal comes from the Sanskrit word “Upala” for stone or precious stone.
Doublets consist of two layers adhered together with glue:
A black backing which is made of either black industrial glass, black patch (colourless opal), hard plastic, brown ironstone or sometimes vitrolite.
A thin slice of opal (normally crystal opal or white opal). The thickness of the opal in a doublet can vary, however, it is generally thicker than the opal found in a triplet. The edges of the slice of opal are generally rounded off (if there is enough opal) to give the stone a cabochon (domed top).
Doublets can usually be identified by looking at the side of the opal – if the stone has been adhered together you will notice that the line where the coloured opal and the black backing meet is perfectly straight. This is necessary for the two layers to be adhered together. If a doublet is set into jewellery with the sides covered, it is extremely difficult, even for an expert, to tell whether it is a doublet or a solid opal. Since the top of the stone consists of pure opal, it, therefore, appears exactly like a black opal, and doublets thus have a much more natural appearance than triplets.
OPAL THE “EYE STONE”
Doublet Opal & CZ Pendant
- Birthstone – October
- Zodiac: Cancer, Libra, Scorpio, Pisces
- Element – Water
Opal is the birthstone for the month of October, along with pink tourmaline. It is also the stone given to celebrate the 14th year of marriage. The name opal is thought to be derived from the Sanskrit Upala, meaning “precious stone,” and later the Greek derivative “Opallios,” meaning “to see a change of color.”
Opal is predominantly found in Australia. 95% of it, to be exact, is found there, thus making opal the country’s national gemstone.The most appreciated and valuable opal is
Black Opal, due to their dark body tone and the resulting vibrant play of colour.
Semi-black Opal, also known as
Grey Opal, refers to opals which have a darker body tone than white opals, yet are not quite dark enough to be classified as Black Opals. They are found mostly at Lightning Ridge, however they have also been found at Mintabie in South Australia.
See all our
Semi-Black Opalitems here.
To define opal they are solid gems mineraloid that is solidified from the chemical silicon dioxide, which comes from cavities in decaying vegetation, wood, and bones.
The opal can be quite superb. Opal from Lightning Ridge is often considered to be the best and brightest in the world. Opal is an emotional stone that reflects the mood of each person. It intensifies emotions and releases inhibitions. It encourages both freedom and independence.
Opal enhances cosmic consciousness and induces psychic and mystical visions. It stimulates originality and creativity, helping to release anger and claim self-worth, aiding in accessing and expressing one’s true self.
They are known for strengthening the memory, it also encourages an interest in arts. By wearing your Opal you will bring loyalty, faithfulness, and spontaneity. Opal is a noncrystalline form of the mineral silica. Opal is related to the more common crystalline cousins such as quartz and agate. Opal differs as it is formed from amorphous lumps of silica rather than that from naturally faceted crystals. The chemical composition of opal is SiO2H2O, silicon dioxide combined with water (an opal stone may contain up to 30% water.) Opal’s Moh’s hardness rating is measured at 6.0 to 6.5 on the scale similar in hardness to quartz. Most opal is more than 65 million to 145 million years old and is found in the Cretaceous layer of rock which was during the period when dinosaurs roamed the earth.
Doublet Opal & CZ Pendant