Gemology Hub | Gemstone & Mineral Identification Guides

  Baotite Mineral Details Baotite Mineral from Pakistan B Physical Properties Color: Black Crystal System: Tetragonal Cleavage: None Observed Luster: Vitreous Hardness (Mohs): 5.5 Streak: Black Fracture: Conchoidal Optical Properties Refractive Index: nω=1.810 nε=1.790 Birefringence: δ = 0.020 Optical Character: Uniaxial (-) Faced Baotite which is uncommon  Use and Rarity Baotite is a very rare mineral that is primarily used for scientific study and as a collector's item for mineral enthusiasts. Faceted Baotite Available , click on the below underline link  Baotite, Rare faceted mineral  for sale

The Collection of Elizabeth Taylor | Christie's Christie's The fact that the Elizabeth Taylor family has given us this collection to take to the market is an enormous honor and we take it with great pride and seriousness. We are also very joyous because it is one of the greatest collections in the world. This is not just a jewelry auction, it is the auction of Elizabeth Taylor. It is one of the most beautiful collections of jewelry in the world, and each piece has a romantic story behind it. 80 pieces comprised the first auction in the evening, and it included sensational and legendary pieces from Bulgari, Cartier, Boucheron, and Van Cleef & Arpels. One of the highlights is a 33 carat D color diamond, which is the best and whitest diamond you can find. Jewelry was a way of life for Elizabeth Taylor, and she had a strong emotional connection to each and every piece. Elizabeth Taylor's fashion collection is also very special. She was a superstar before superstars had styl...

  Gem Palace In the 18th century, around 1700, my family was invited by Maharaja Jai Singh 2nd to settle in his new city and become the official jewelers for his family. The Maharaja wanted the city to prosper, so he brought businessmen and artisans from all over India to settle there. During this time, a lot of jewelry was being made for various purposes, from religious ceremonies to personal adornment. The Opulence of Indian Jewelry One example of this opulence is a 250-year-old pin made with old Indian diamonds from the Golconda mines, which were highly valued during the time of the Mughal emperors. Jewelry was created for everything from horses and elephants to children, women, and men. For instance, there is a 70-carat diamond bracelet made for a four-year-old princess, showcasing exquisite enamel work and diamonds. Drinking Flask and Diamond Spoons Another remarkable piece is a 250-year-old drinking flask made by my family. It is made of 22-karat gold and features intricate e...

  Find out your lucky stone of the day of a week with the help of this amazing calculator Lucky Stones Calculator Lucky Stones Calculator Find out your multiple lucky stones of the day of a week, including organic and inorganic, with the help of this amazing calculator. Select the Day of the Week: Select a day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Calculate

Just put the number (for example 4 or 15 or 25) and find out your gemstone Anniversary Stone Calculator Anniversary Stone Calculator Enter Number of Years Married: Calculate Anniversary Stone

Determine the Zodiac Sign based on the month and day Zodiac Sign Finder Zodiac Sign Finder Enter Your Birthdate: Find My Zodiac Sign

  Diaspore - A Fascinating Mineral Diaspore is a fascinating mineral with unique properties that make it truly special. Found in various regions around the world, diaspore has gained popularity among mineral enthusiasts due to its distinctive characteristics. Chemical Composition Diaspore is an aluminum oxide hydroxide mineral, chemically known as AlO(OH). It was first discovered in the Ural Mountains of Russia in the early 19th century and later named "diaspore" by Frédéric Sarrans, a French mineralogist. This mineral is often found in association with other aluminum-bearing minerals like bauxite, boehmite, and gibbsite. Pleochroism and Color Change One of the most intriguing properties of diaspore is its pleochroism. Pleochroism refers to the ability of a mineral to display different colors when viewed from different crystallographic directions. In the case of diaspore, it exhibits a color change phenomenon, appearing greenish-yellow when viewed from one direction and pinki...

  Types of Glass Types of Glass The types of glass mentioned refer to different compositions and refractive indices (RI). Glass, Fused Silica – RI 1.459 Fused silica glass is composed mainly of silicon dioxide (SiO2) and has a relatively low refractive index. It is known for its excellent thermal and chemical resistance, making it suitable for various high-temperature and corrosive applications. Glass, Pyrex – RI 1.474 Pyrex glass is a borosilicate glass that contains boron trioxide as a significant component. It has a slightly higher refractive index than fused silica glass. Pyrex glass is known for its low coefficient of thermal expansion, making it resistant to thermal shock. It is commonly used for laboratory glassware, cookware, and other applications requiring heat resistance. Glass, Flint, 29% lead – RI 1.569 Flint glass is a type of optical glass that contains lead oxide. The addition...

  Gemstone Misrepresentation Pink Glass (paste) It is unfortunate, but there have been cases where man-made glass, specifically a material known as "Pink Paste," has been misrepresented and sold as natural pink tourmaline. This practice is misleading and unethical, as it aims to deceive buyers who are seeking genuine gemstones. Pink glass under short waves ultra violet rays, Mostly Pink tourmaline inert under short waves Pink tourmaline is a naturally occurring mineral with specific properties, including its chemical composition, crystal structure, and physical characteristics. On the other hand, Pink Paste is an artificial material that is made to resemble pink gemstones, including tourmaline, but lacks the authenticity and value of a natural gem. Glass under microscope.  Elongated bubbles are seen under microscopic study in pink paste To avoid falling victim to such misrepresentations, it's important to purchase gemstones from reputable and trusted sources. Buying from ...