Bestselling Products

 

American Experience: Ruby Ridge

  • Amazon Prime Video (Video on Demand)
  • Jim Botting, Bo Gritz, Dave Hunt (Actors)
  • Barak Goodman (Director) - Barak Goodman (Writer) - Barak Goodman (Producer)
  • English (Playback Language)
  • English (Subtitle)
  • Audience Rating: NR (Not Rated)
 

Ruby (Oprah's Book Club 2.0)

  • Random House
  • Bond, Cynthia (Author)
  • English (Publication Language)
  • 368 Pages - 02/10/2015 (Publication Date) - Hogarth (Publisher)
 

Trolleyshop 1pc Big 60mm Deep Ruby Red 60mm Cut Glass K9 Crystal Giant Diamond Shaped Decoration Jewel Paperweight Wedding Favors, Home Decor, Amazon Shipping

  • Made of high quality K9 crystal, has good transparency and refraction. Multiple sections on the bright place will appear rainbow spot capture the sparkle of light
  • Amazon Shipping Only, The gem piece is shaped using the round brilliant cut, has good hardness and texture, with gorgeous colors
  • Crystal diamond outline have been carefully polished and finely engraved
  • Great decoration for your home or office, add some elegance to your decor. Great for any occassions gift, wedding, party centerpiece, home decoration, anniversary, birthday gift, festival gift, cristmas decoration
  • Package Included: 1 x 60mm/2.36" Red Crystal Glass Diamond Paperweight
 

Science Fair or Foul

  • Amazon Prime Video (Video on Demand)
  • Sarah Gadon, Stacey DePass, Emily Hampshire (Actors)
  • Robin Budd (Director) - Carolyn Hay (Writer) - Scott Dyer (Producer)
  • English (Playback Language)
  • English (Subtitle)
 
Ruby Sparks
417 Reviews

Ruby Sparks

  • Amazon Prime Video (Video on Demand)
  • Paul Dano, Zoe Kazan, Antonio Banderas (Actors)
  • Jonathan Dayton; Valerie Faris (Director)
  • English (Playback Language)
  • English (Subtitle)
  • Audience Rating: R (Restricted)
 

Sterling Silver Cushion-Cut Checkerboard Created Ruby Pendant Necklace (8mm)

  • Classic and versatile gemstone pendant, ready for anything the day brings
  • Pendant necklace feature 8mm Created Ruby center stone.
  • High polished Sterling Silver four prong setting with 18 inch box chain.
  • Ruby is July's birthstone.
  • The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture
 

Ruby

  • Amazon Prime Video (Video on Demand)
  • Curtis Harrington (Director)
  • English (Playback Language)
  • English (Subtitle)
  • Audience Rating: R (Restricted)
 
Ruby Bridges
587 Reviews

Ruby Bridges

  • Amazon Prime Video (Video on Demand)
  • Penelope Ann Miller, Kevin Pollak, Michael Beach (Actors)
  • Euzhan Palcy (Director) - Toni Ann Johnson (Writer)
  • English (Playback Language)
  • English (Subtitle)
 

Max's Valentine/Ruby Flies a Kite/Super Max

  • Amazon Prime Video (Video on Demand)
  • Nick Jr. (Producer)
  • English (Playback Language)
  • English (Subtitle)
 

Chocolove Ruby Cacao bar (2 BARS)

  • Chocolove Ruby Cacao bar 3.1 OZ
  • From Ruby cacao beans
 

GemStar USA Sterling Silver Created Ruby Marquise-Cut Tennis Bracelet with White Topaz Accents

  • FEATURE - Elegant and chic, this stunning tennis bracelet for women and girls features 6x3mm marquise-cut synthetic ruby gemstones with white topaz accents for an extra dazzle.
  • CRAFTED - The bracelet is crafted of fine sterling silver, and is nickel & tarnish free. It is secured with a box and safety latch.
  • SATISFACTION – We offer a 30-day satisfaction money back guarantee. If you’re not satisfied for any reason, you will receive a full refund upon returning your purchase within 30 days.
  • PACKAGING - Jewelry packaged ready for gifting.
  • ABOUT – Our jewelry collection is an assortment of hand selected fine and fashion jewelry. We carry an expansive selection of gemstones, cubic zirconia and precious metals. This includes a variety of pendant necklaces, dangle, drop and stud earrings, hoop earrings, tennis and line bracelets, rings, polished jewelry, birthstone jewelry etc.
 

RWBY: Volume 1

  • Amazon Prime Video (Video on Demand)
  • Barbara Dunkelman, Gray G. Haddock, Shannon McCormick (Actors)
  • Monty Oum (Director)
  • English (Playback Language)
  • English (Subtitle)
 

Barbarian's Treasure: A SciFi Alien Romance (Ice Planet Barbarians Book 21)

  • Amazon Kindle Edition
  • Dixon, Ruby (Author)
  • English (Publication Language)
  • 187 Pages - 05/01/2020 (Publication Date)
 

Max & Ruby Bunny Bake Off

  • Characters and art from the beloved Max & Ruby series
  • Your very own virtual recipe book for kids to view the recipes they’ve made! Then get ready to tap, tap, tap and gobble up the yummy food
  • Jump start your imagination with play food decorating
  • Fun narration makes these special bunnies come to life
  • Max & Ruby Easter and spring themed deluxe coloring book with tons of tools, paints, crayons and stickers!
  • English (Publication Language)
 

Practical Object-Oriented Design: An Agile Primer Using Ruby (2nd Edition)

  • Metz, Sandi (Author)
  • English (Publication Language)
  • 288 Pages - 09/01/2018 (Publication Date) - Addison-Wesley Professional (Publisher)
 

Pokémon Omega Ruby - Nintendo 3DS

  • Games in 2D. Some areas also playable in 3D. For Nintendo 3DS systems, use Parental Controls to restrict 3D mode for children 6 and under
  • Entertainment Software Rating Board (ESRB) Content Description: Suitable_for_all_users
  • English (Publication Language)
 

Alex and Ani July Birth Month Charm with Swarovski Crystal Rafaelian Silver Bangle Bracelet

  • A color of royalty, infuse your life with the absolute power and passion of the Light Siam Crystal. 
 

Ruby Finds a Worry (Big Bright Feelings)

  • Hardcover Book
  • Percival, Tom (Author)
  • English (Publication Language)
  • 32 Pages - 09/03/2019 (Publication Date) - Bloomsbury Children's Books (Publisher)
 

The Siege at Ruby Ridge

  • Laura Dern, Randy Quaid (Actors)
  • Roger Young (Director)
  • English (Subtitle)
  • Audience Rating: NR (Not Rated)

Ruby is a class 04 mineral (oxides), according to Strunz’s classification. It is a reddish-coloured gem; if it is purple, it is called balaj. It owes its colour to the iron and chrome metals with which this variety of corundum (aluminium oxide Al2O3) is associated. Its name comes from ruber, which means ‘red’ in Latin.

It belongs to the corundum family, along with sapphire, a convention of name being the only difference between the two gems. Red corundum is called ruby and sapphire is called all other colors, including pink.

It corresponds to the hardness 9 on the Mohs scale. It is considered one of the four precious gems along with sapphire, emerald and diamond.

Ruby deposits can be found in Burma, Sri Lanka, India, Madagascar, Thailand, Brazil, Colombia, China and Russia, as well as in smaller quantities in South Africa, Australia, Greenland and the United States. Those in the Malaysian Peninsula and Tanzania are very valuable, reaching the value of diamonds of the same size.

The synthetic ruby

Synthetic rubies were first produced in 1923 by mixing alum and chrome pigments. This method allows the production of stones that are chemically and physically very similar to natural ones. However, synthetic rubies are used more in watchmaking than in jewelry.

It is prepared in the following way: First, aluminum oxide (Al2O3) and chromium oxide (CrO3) are used stoichiometrically in a platinum crucible. Then it is placed in a muffle furnace at about 2000 K for about 250 minutes. Finally, it is cooled and the glass is observed to remain on the platinum base.

Physical Properties

Ruby is hard (Mohs hardness: 9), and its colour varies with the concentration of trivalent chromium (Cr2O3) in the ore. Due to traces of iron, the colour becomes browner. Its melting point is > 2000 °C, and varies only a few degrees, depending on the concentration of impurities. The relative density is 3.9 to 4.1, depending on the crystalline defects present. Ruby has a trigonal crystalline configuration, and often forms hexagonal crystals.

Chemical Properties

The ruby is corrosion resistant as it is kinetically and thermally stable as well. It cannot be dissolved in halogenic acids, but it can be dissolved in sulphuric acid to form an aluminium acid sulphate with chromium and aluminium oxide. It is also attacked by perchloric acid, hydrofluoric acid and hexafluorosilic acid.

Obtained from

It is obtained from bauxite mines by the leaching and flotation method. It is also found in the shallow rivers of the Mesolithic zone. Nowadays it is mostly artificially manufactured.

Uses

Their uses are not restricted to jewellery, where their value depends on their colour, size, density and purity.they have been widely used in the manufacture of mechanical watches, where they serve as a support or hub for shafts subjected to rotation as their hardness resists frictional wear.

They also have important industrial applications for creating helium-ruby and pure ruby lasers.

They are used to make bracelets and luxury items.

Ruby engraving

The ancients engraved little in ruby and Pliny the Elder gives as a reason that the seals made with this substance took the wax. The excessive hardness of the ruby, its high price, the rarity of the planes proper for engraving are certainly the real causes that prevented the artists of antiquity from engraving the ruby. It should be noted, moreover, that the impossibility for the ancients to polish the cavities made with this substance could cause the defect of which Pliny speaks.

In the Museum of Odescalque you can find the design of a ruby engraving representing Ceres standing with a spike in his hand. Another ruby engraving features the head of a man with a long beard and frizzy hair who is believed to represent a Greek philosopher. This ruby was carved in the shape of a heart and was part of the collection of the Duke of Orleans.