#Ghost Game from random import randint print('Ghost Game') feeling_brave=True score=0 while feeling_brave: ghost_door = randint(1, 3) print('Three doors ahead') print('A ghost behind one.') print('Which door do you open?') door = input('1, 2, or 3?') door_num = int(door) if door_num == ghost_door: print('GHOST!') feeling_brave = False else: print('No ghost!') print('Y0u enter the next room.') score = score + 1 print('Run Away!') print('Game over! You scored', score)

The Story

the city

predicted grade.

                                       

                                     

You and You it

You and Your It.

Acer A715-71G-55R7 15.6" Intel Core i5 7th Gen 7300HQ (2.50 GHz) NVIDIA GeForce GTX 1050 8 GB Memory 128 GB SSD 1 TB HDD Windows 10 Home 64-Bit Gaming Laptop. By Acer.

  This is my ipad i got it two years ago and it still works surprisingly i uses it the watch youtube and on road trips to pass the time.it is made by apple. I uses to play on and xbox but now i only use it every once and a while and i use it the play the best xbox game of all time star wars battle front 2 made by micro soft. This is the real one not that new rip of coming later this year how would you not want these skates. its a freaking robot how would you not want it!. Its a future car from the future. it just looks cool that why i want it.

A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments.^[1][2] However, certain rocks (such as lapis lazuli, opal, and jade) or organic materials that are not minerals (such as amber, jet, and pearl) are also used for jewelry and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used 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 engraved gems and hardstone carvings, such as cups, were major luxury art forms. A gem maker is called a lapidary or gemcutter; a diamond worker is a diamantaire. The carvings of Carl Fabergé are significant works in this tradition.

The traditional classification in the West, which goes back to the ancient Greeks, begins with a distinction between precious and semi-precious; similar distinctions are made in other cultures. In modern use the precious stones are diamond, ruby, sapphire, and emerald, with all other gemstones being semi-precious.^[3] This distinction reflects the rarity of the respective stones in ancient times, as well as their quality: all are translucent with fine color in their purest forms, except for the colorless diamond, and very hard, with hardnesses of 8 to 10 on the Mohs scale. Other stones are classified 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.^[4] Another unscientific term for semi-precious gemstones used in art history and archaeology is hardstone. Use of the terms 'precious' and 'semi-precious' in a commercial context is, arguably, misleading in that it deceptively implies certain stones are intrinsically more valuable than others, which is not necessarily the case.
In modern times gemstones are identified by gemologists, who describe gems and their characteristics using technical terminology specific to the field of gemology. The first characteristic a gemologist uses to identify a gemstone is its chemical composition. For example, diamonds are made of carbon (C) and rubies of aluminium oxide (Al
2O
3). Next, many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic. Another term used is habit, the form the gem is usually found in. For example, diamonds, which have a cubic crystal system, are often found as octahedrons.
Gemstones are classified into different groups, species, and varieties. For example, ruby is the red variety of the species corundum, while any other color of corundum is considered sapphire. Other examples are the Emerald (green), aquamarine (blue), red beryl (red), goshenite (colorless), heliodor (yellow), and morganite (pink), which are all varieties of the mineral species beryl.
Gems are characterized 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.
Material or flaws within a stone may be present as inclusions.
Gemstones may also be classified in terms of their "water". This is a recognized grading of the gem's luster, transparency, or "brilliance".^[5] Very transparent gems are considered "first water", while "second" or "third water" gems are those of a lesser transparency


links:https://en.wikipedia.org/wiki/Gemstone