Gemstone

A gemstone is a piece of mineral, which, in cut and polished form, is to make jewelry or other adornments. However, certain rocks and organic materials are not minerals, but are for jewelry, and are therefore often gemstones as well. Most gemstones are hard, but some soft minerals are in jewelry because of their luster or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone. Apart from jewelry, from earliest antiquity until the 19th century engraved gems and hard stone carvings such as cups were major luxury art forms the carvings of Carl Faberge were the last significant works in this tradition. The traditional classification in the West begins with a distinction between precious and semi-precious stones; similar distinctions are in other cultures. In modern usage, the precious stones are diamond, ruby, sapphire and emerald, with all other gemstones being semi-precious. Other stones are by their color, translucency and hardness. The traditional distinction does not necessarily reflect modern values, for example, while garnets are relatively inexpensive, a green garnet called Tsavorite, can be far more valuable than a mid-quality emerald. Another term for semi-precious gemstones used in art history and archaeology is hard stone. In modern times gemologists, who describe gems and their characteristics using technical terminology specific to the field of gemology, identify gemstones. The first characteristic a gemologist uses to identify a gemstone is its chemical composition. For example, diamonds are made of carbon and rubies of aluminum oxide. Next, many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic. For example diamonds, which have a cubic crystal system, are often as octahedrons. Gemstones are into different groups, species, and varieties. Ruby is the red variety of the species corundum, while any other color of corundum is sapphire. Emerald (green), aquamarine (blue), red beryl (red), goshenite (colorless), heliodor (yellow), and morganite (pink) are all varieties of the mineral species beryl. Gems are in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture, and luster. They may exhibit pleochroism or double refraction. They may have luminescence and a distinctive absorption spectrum. There is no universally accepted grading system for gemstones. Diamonds are using a system developed by the Gemological Institute of America (GIA) in the early 1950s. Historically, all gemstones were using the naked eye. The GIA system included a major innovation: the introduction of 10-x magnification as the standard for grading clarity. Other gemstones are still using the naked eye. A mnemonic device, the color, cut, clarity and carat, has been to help the consumer understand the factors used to grade a diamond. With modification, these categories can be useful in understanding the grading of all gemstones. The four criteria carry different weight depending upon whether they are to colored gemstones or to colorless diamond. In diamonds, cut is the primary determinant of value, followed by clarity and color. Diamonds are to sparkle, to break down light into its constituent rainbow colors chop it up into bright little pieces and deliver it to the eye (brilliance). In its rough crystalline form, a diamond will do none of these things; it requires proper fashioning cut. In gemstones that have color, including colored diamonds, it is the purity and beauty of that color that is the primary determinant of quality. Physical characteristics that make a colored stone valuable are color, clarity to a lesser extent cut, unusual optical phenomena within the stone such as color zoning, and Astoria (star effects). The Greeks, for example, greatly valued Astoria in gemstones, which were as a powerful love charm, and Helen of Troy was to have worn star-corundum. Aside from the diamond, the ruby, sapphire, emerald, pearl and opal have also been precious. Up to the discoveries of bulk amethyst in Brazil in the 19th century, amethyst was a precious stone as well, going back to ancient Greece. Even in the last century, certain stones such as aquamarine, peridot and cat's eye have been popular as precious. Many gemstones are in even the most expensive jewelry, depending on the brand name of the designer, fashion trends, market supply, treatments etc. Nevertheless, diamonds, rubies, sapphires and emeralds still have a reputation that exceeds those of other gemstones. Rare or unusual gemstones, generally meant to include those gemstones, which occur so infrequently in gem quality that they are scarcely except to connoisseurs, include andalusite, axinite, cassiterite, clinohumite and red beryl. Gem prices can fluctuate heavily. In general, per carat, prices of larger stones are higher than those of smaller stones, but popularity of certain sizes of stone can affect prices.

Slahal

Slahal Lahal is the Indigenous peoples of the Pacific Northwest Coast gambling game known as stickgame, bonegame, bloodless war game, handgame, or a name specific to each language. It is played throughout the western United States and Canada by indigenous peoples. The name of the game is a Chinook Jargon word. The name bone game comes from the fact that the bone sets historically used were the shin bones from the foreleg of a deer or other animal.

The game is played with two opposing teams. There are two sets of bones, and two sets of sticks 10 sticks per team during aboriginal times, but in modern times usually played with 5 sticks per team and a kick or king stick -- an extra stick won by the team who gets to start the game in some areas a kick stick is not used. When a game is in play, one of the two teams will have two sets of bones, shown above. When your team is guessing, your objective is to get the right bone, the one without the stripe. When you have the bones, your objective is to make sure the other team guesses wrong on the bones set. When the other team guesses wrong, you gain a point. When a team has the two sets of bones, two separate individuals will hide the bones and swap them around from hand to hand each person has a striped and non-striped bone. Eventually the bones are brought forward, but are concealed as to not show the other team what one has a stripe on it. The game is usually accompanied by drumming and singing used to boost the morale of the team. The side that has the bones sings, while the other tries to guess. The musical accompaniment is also sometimes used to taunt the other team. Gambling could be done by players, or spectators of a match, placing bets on teams, or individual matches within the game between one guess and the other team's bone hiders.

Oral histories indicate that slahal is an ancient game, dating to before the last ice age.citation needed In the Coast Salish tradition, the Creator gave stickgame to humanity as an alternative to war at the beginning of time. Thus the game straddles multiple roles in Native culture -- it is at once entertainment, a family pastime, a sacred ritual and a means of economic gain through gambling. These juxtapositions are sometimes difficult to comprehend for the Western mind, but to many members of the Native community they are woven together effortlessly as a harmonic whole.

In the context of casinos, comps are complimentary items given out by casinos to encourage players to gamble. The amount of comps that a player is given usually depends on what game they are playing, how much they are betting, and how long they have played. Most casinos have hosts who are responsible for giving out free items and contacting players to bring them back to the casino. Pit bosses can also award comps at table games. Most casinos now require a player to have a player's club or similar card, so that their play can be tracked and comps awarded. The lowest level of comp available at most casinos is free alcohol and other beverages. Many casinos provide free drinks to anyone who is gambling. The second level of comp that many players earn is free meals. Many casinos have several restaurants and may require more play to earn a comp to the higher end restaurant. Often the player is given a certain amount to spend, but sometimes, particularly with high rollers, the player may be given the right to order as much food as they want. The next level of comps is usually free hotel rooms. Many casinos have attached hotels, but those that don't may have the ability to comp rooms to a hotel nearby. Many casino hotels have higher quality rooms, such as suites, villas, presidential suites and so on for bigger bettors. Many players who receive hotel rooms receive a package called RFB for room, food, and beverage or RF for smaller bettors, or jurisdictions where casinos are not allowed to give free alcohol. Many casinos also offer other comps, especially to high rollers. These may include airfare reimbursement, limo rides, prostitution services, tickets to shows, golf, free concierge services, cash back, private gaming areas, and private jet service. Casinos also frequently offer players comps by mail. These may be free bet offers, free meals, discounted or free rooms, or entries into tournaments or prize drawings.

Casino Keno

Playing Keno

Keno is usually played in Casino lounges specifically allocated for the game, but there are so called 'Keno runners' who will collect your ticket and deliver the winnings if the player wants to play from outside the lounge area. There are many television monitors spread all over the Casino halls to keep players informed of the winning numbers.
There is also the video version of Keno. These are slots-like coin operated machines. It plays using the same principle with similar rules of the regular Keno, but you get the results much faster.
To play Keno, you select a minimum of 4 but no more than 10 numbers between 1 and 80. Each selection is called a 'Spot', so if you select 10 numbers you are playing a 10 Spot game.
Keno tickets are located at tables throughout the Casino and in the Casino's Keno lounge. The Casino provides a 'Keno crayon' for this purpose.

Simply mark a blank Keno ticket with the numbers of your selection. Then present your ticket to the Keno desk with your wager and the clerk will give you a duplicate ticket. In a few minutes, twenty numbered Keno balls will be drawn at random from a barrel containing 80 numbered balls, and if enough of your selected numbers are drawn, you are a winner. The results are displayed on screens, called Keno boards, throughout the Casino.
Minimum bets can be as low as 5 cents, although some Casinos only accept bets of $1 or more. The house's Keno brochures give you information about payoffs and various tickets you can play.
The amount of money you win is dependent upon the type of ticket you play and the number of 'spots' caught. You may play as many tickets as you wish. You could win as much as $50,000 on a $1 wager in some Casinos.

The round of a Keno game is called a Keno race. In many Casinos, 'multi-race' Keno is featured, where you can play a number of consecutive Keno races at one time.
The house advantage on Keno varies according to the Keno game played. It is always around 30% or more.