Opal is a sub-gemstone of white colour. There are splatters of various colours on its surface. This gem stone is very soft and tender and breaks with a small hit. White colour stone named opel in English has been derived from Latin work Opulus which has meaning “like jewellery”. As per one more information, word opal has come from Sanskrit word Upal which means a “precious stone”.
Benefit from wearing:
Opal is worn for good health, love and wealth. Opal is helpful in fulfilling the life with luxury. Opal helps in doing better in Art and Creativity.
How to test in original gemstone
Look at the back of the opal - does it look or feel like a kind of hard black or grey plastic? Triplets are often glued on to a black plastic, glass, or vitrolite backing. Doublets are a little more difficult to identify, as they often use a natural potch (black, colourless opal) or ironstone (the brown boulder opal host rock) backing. In this case, look at the side of the stone again and see if the 'join' between the opal and the backing is perfectly flat (i.e. the line around the circumference is perfectly straight). Most genuine solid opals have an irregularity in this area - curved or bumpy due to their natural formation - whereas a man-made stone will be perfectly flat because the two sections are flattened so they can be glued together. Be especially wary if the opal is set in jewellery and you cannot see its back or side. Even an expert will have difficult identifying a doublet set once it's set in jewellery with the back & sides covered.
Be educated before you buy. Know what real opal looks like, and compare what you have seen to what you are buying. People have been known to set coloured tinsel or foil underneath clear plastic to make an 'imitation opal'.
Synthetic solid opal can be very difficult to identify, unless you are an expert, or have a lot of experience. Look closely at the pattern - Opal created in a laboratory (Gilson opal), displays bright colours in large patches of colour. The pattern is often 'too perfect' and ordered, and can also often display a 'snakeskin' pattern. If you are still not sure, take it to a gemmologist or an opal expert.