Opal
Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. The name opal is believed to be derived from the Sanskrit word upala (उपल), which means 'jewel', and later the Greek derivative opállios (ὀπάλλιος), which means 'to see a change in color'. There are two broad classes of opal: precious and common. Precious opal displays play-of-color (iridescence); common opal does not.5 Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from certain minerals, as they are turned in white light."6 The internal structure of precious opal causes it to diffract light, resulting in play-of-color. Depending on the conditions in which it formed, opal may be transparent, translucent, or opaque, and the background color may be white, black, or nearly any color of the visual spectrum. Black opal is considered the rarest, while white, gray, and green opals are the most common.
The Urban Dictionary Mug
Your description is right on, except in 1989 I named my daughter Kallen Mikel (www.kallenmikel.com/original-art). I thought I made up the name, but apparently, it originated as a boy's name in Greek and Hebrew. I first found this out in 2001 when I was traveling to Finland. In the 'tube food' section in a big Finnish supermarket there it was, a royal blue tube of salmon paste with a blonde-haired boy named Kallen! So now I have discovered that there are many Kallen's of both sexes. I want to buy her a cup, but it has 'him' on it. Is there any way you can make that a unisex description for both sexes? Just askin'. Being a Barbara (Barbs) myself ... a 'cake eater' from Edina, MN I had to ask ... haha ;-)
Thank you for the mug. It arrived fast and exceeded my expectations.
I loved my mug and it came in a timely fashion.
Gave i as a gift to my teacher she loved it
Sent this to a friend who may have originated the term, now part of slang lexicon. He was very pleased. The color is also perfect. Well done!
this mug summs up my entire life
BEST THING EVER I GOT THIS FOR MMY SON AND HE LOVED IT HE SAID THAT THE FINSTTERD GUY IS WHO HE LOVES AND IM FINE WITH THAT I HOPE HE GOT THE GIRL SOMETHING FOR VALENTINES DAY
Shipped very fast and very carefully! Perfect inside joke gift for a friend. ^_^
IT WAS AMAZING!!! BEST MUG EVERRRRR ITS A MUST BUYYYY!!! 🤑🤑🤑🤑🤑🤑🤑
very good for lean 😾😾💪
Damn drinking lean from this hits different. In a good way ofc
As usual very quick professional seller.
ENGAGED IN AN ACT OF COPULATION WITH MY FEMALE PROGENITOR INSIDE THIS MUG 11/10 WOULD ADVISE YOU TO PURCHASE IT
I SHIT IN THIS MUG SO MANY TIMES. Very cool
I literally broke it 10 minutes after opening the package while showing it off. Now my bussy mug is held together with super glue
I use this mug for my lean. Ironic shit am I right
Hi Cool mug! Really great and mad me lol when I saw the definition! 🤣
I would eat this mug, no hesitation
Hell yeah My definition as merch. Hell yeah
So dope.
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