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
i use my mug for sperm donation
10/10, great for taking a massive shit in. Overflows if its more than 2 pounds, but its part of the fun, right?
Needed one to gift to my colleague in pests exptermination department, takes care of my bug pretty well. Damn well of a bugger, if I would, ol' chap. 😌
My nan bought this mug, took one sip and died on the spot. absolute joke.
it was day my mug had just arived i went to the door and grabed the box i closed the door AND BAM thge mug flew at me knockingme to the grouynd when on the ground the mug unzipped my pant a flew up my ass 10/10 loved it would buy
I love pooping in this mug, great experince. But if you do more than 1 pound as I do, search for a bigger one
i love men and cups so this cup was perfect for me
Amazing mug, really high quality, I love it!
fantastic, personal gift to share with anyone!
The mug arrived very packed and on time. I love how well crafted the coffee mug is. I plan on ordering other merch from URBAN Dictionary soon. Thanks.
It morbed its way into my anus, a bit weird, but otherwise happy with my purchase
After watching that anal jar video, I felt inspired. That's when I found this mug.
FUCK YEAAAAAAAA! MUUUUGZ WOOOOOO
Happy with my purchase
amazing I will buy this. it will be my child. I WILL BE KING OF THE 0w0
I loved this mug! when i drink out of it it always has a horrible stench and honestly i dont mind because i love smelling it. my boyfriend thinks i should throw it away because he says "its has lead poisoning" but i cant get rid of it. when my mom died i bought her a mug that said "deceased" because i thought it would brighten the moment when i open presents at her funeral (it worked). but if your looking for something to buy, you should really get one of these mugs. they are cute, nerdy, and remind me of my dead mother!
Yay. I got a mug... And it has the most accurate definition of my name ever lmfao. The quality is great and it's totally worth the price. For me, at least :)
The accuracy is real! My husband and I have 3 daughters. Our last name is Staats, in UD was spot on! Unbelievable! I got it to my husband just in time for Father's Day! Lol!
love it sm, gives a clear understanding of the word every sip thankyou
I nutted in the mug. Loved it!!!!!!!!
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