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Gems and Precious Stones
Gems and precious stones are cut or polished minerals used to create jewelry, accessories and other ornaments. Some of the most popular precious stones include amethyst, aquamarine, diamond, emerald, opal, ruby, sapphire, topaz, and turquoise.
1,193 Questions
Blue diamonds are very rare found in nature and thus the price for them is extremely high. For example in 2009 rare blue gem named Petra Blue Diamond was sold at Sotheby's auction in Geneva and took a record price of $9.5 million. For more information about other famous blue diamonds follow the link attached.
What are the disadvantages of malls?
Malls are usually overcrowded, you will have to walk some miles to get what you want, clothes you want to buy or like will be tried by other people multiple times, you will hope to get some discount anyway which will disappoint you again, lastly you will have to make sure you didnt forget anything to buy that you wrote on the shopping list at home...!!
Besides gems what other commercially important geologic materials do humans use?
Humans also use metals such as gold, iron, copper, and aluminum which are important for various industries. Additionally, rocks like marble and granite are used for construction purposes. Fossil fuels like coal, oil, and natural gas are crucial for energy production.
What were some of Brian Mulroney's achievements?
Brian Mulroney, a former Canadian Prime Minister, is known for signing the Canada-US Free Trade Agreement, which later expanded into NAFTA. He also played a key role in tackling the national debt and implementing the Goods and Services Tax (GST) as part of his economic reforms. Additionally, Mulroney appointed the first female Governor General of Canada, Jeanne Sauvé, marking a milestone in Canadian history.
Which country is the biggest opal exporter?
Australian opals are exported practically everywhere around the world but the main countries we export to is Hong Kong, Taiwan, Japan, USA and Europe.
True or False Diamonds can't actually cut glass?
False
Another Answer
True, in the sense that diamonds can mar glass. A glass-cutter uses a diamond-tipped tool to mark a cut line on glass, then applies pressure to either side of the cut line. This separates the glass where the cutter wants it cut.
Gold jewelry can be made of sold pieces, like a wire or hollow pieces like a pipe. Either can be real or fake. The purity of the metal used is what is important not if a pipe is used.
With the price of gold so high today many gold manufactures are using different techniques to get a larger look with keeping the weight down. Hollowing out the piece is one way to do that
Caribbean topaz is a type of gemstone that is typically blue in color, reminiscent of the beautiful waters of the Caribbean Sea. It is a popular choice for jewelry due to its vibrant hue and relative affordability compared to other gemstones.
200mg or 1/5th of a gram is one carat.
_____________Another Answer
The value of a one carat diamond depends on its cut, its colour and its clarity in addition to its carat weight, which you set at one carat.
A local jeweler can show you stones in your price range. You can expect to pay $2,000 or less - $8,000 or more for a good quality one carat diamond.
What determines the shape of a crystal?
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How do you make a Vertical diamonds friendship bracelets?
Hi,
You can try to visit BraceletBook.com
You can find a lot of tutorials, bracelet patterns and bracelet photos there. You can also add a photo, or pattern that you've made. Another cool thing is, you can create an alpha pattern from an image, in 2 single steps, and start tying today! The only thing you have to do is to sign up there (if you want to add the patterns and photos). They also have an iPhone app for the website, so you can make the bracelets on the road.
Good luck ;)
No, diamonds are extremely hard and cannot be easily destroyed by conventional means such as explosions. They require extremely high temperatures and pressure to combust or vaporize.
There is Western speculation -- probably formulated by Victorians in the late 1800s -- that the original stone was the "...eye of a sculpted statue of the goddess Sita, the wife of Rama, the seventh avatar of Vishnu" from which it was removed.
As well, the stone may have been stolen from the French crown jewels -- according to speculation.
You can read more, below.
The cost of topaz can vary depending on factors such as size, quality, and color. On average, topaz in Australia can range from $10 to $300 per carat for smaller stones and $300 to $1,000 per carat for larger, higher quality stones. Specialty topaz varieties like Imperial Topaz can be more expensive.
Is a marking of 925 gold or silver?
A marking of "925" typically indicates sterling silver, which is 92.5% pure silver and 7.5% other metals. Gold jewelry will typically be marked with "9K," "14K," "18K," or "24K" to indicate the purity of the gold.
What gemstone is alexandrite a variety of?
Alexandrite is a gemstone as well as a birthstone. Alexandrite is VERY expensive, gem/birthstone. Alexandrite is the birthstone of June the Gemini. Gemini is like what animal you are in the Chinese calendar. The Gemini is twins. You can tell your horroscope, birthstone, and what kind of person you are. I hope this helped a little.
Gems have -----------applications in abrasives lasers and electronics?
Gems have various applications in abrasives due to their hardness, in lasers for their ability to amplify light, and in electronics for their use as semiconductors or insulators.
The jades tone is a green stone that is worth a lot of money. Usually the greener it is the more it is worth. The jade stone that is worth the most is the emperor's stone and it is a jade stone but it is white.
What do the flutes do in sapphire?
Blue Flute: Recovers from Sleep (250 steps)
Red Flute: Recovers from Attraction (500 steps)
Yellow Flute: Recovers from Confusion (500 steps)
White Flute: Encounter More Wild Pokémon (1000 steps)
Black Flute: Encounter Less Wild Pokémon (1000 steps)
Opals can float in water because they have low density. However, not all opals will float as this depends on their specific density and porosity. It's always a good idea to test each opal individually if you plan on using water to differentiate between a synthetic or a simulant.
Are diamonds the only stones that cut glass?
yes, diamonds are the hardest substance known on earth
answer 2
Diamonds are assigned a hardness of 10 on Mohs hardness scale. But not all diamonds are equally hard. The hardest natural diamonds come from New South Wales, Australia, and are extensively used in polishing other diamonds.
There is a special process of treating ordinary diamonds with heat and pressure to improve their hardness. Boron nitride is often used as polisher of diamonds.
Splitting of a diamond may be done by the use of a hardened steel 'knife' which takes advantage of defects in the crystal lattice.
Diamonds are also cut using a laser.
What is the color of the Amethyst?
Amethyst is a very popular variety of purple-violet quartz. It comes in shades from deep purple to light lavender depending on the quality of the stone.
How did the Amethyst get its name?
The word "amethyst" is derived from the Greek word "amethystos," meaning "not intoxicated." Ancient Greeks believed that wearing or holding an amethyst could protect them from drunkenness. This belief led to the stone's association with sobriety and its use in preventing intoxication.
What does 925 K on jewelry mean?
Sterling silver. It is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper. Sterling silver is most often used for jewelry because of its combination of attractiveness and durability. Acceptable quality marks for sterling silver include: sterling, ster and .925.
How rare are Yellow Diamonds compared to White Diamonds?
yellow diamonds are just very flawed white diamonds, they are extremely common compared to colorless (white) diamonds and are used for tool and other things because the jewelry world sees them as "ugly" or "useless" but like all things sometimes someone likes yellow diamonds and request for one but those are rare, isolated cases.
