This large chunk of Emerald, 2-3 inches in diameter, is great for any mineral collection.
Emerald belongs to the beryl group, being the most precious of the group. The pigment is chrome, sometimes vanadium. Emeralds are formed by rising magma and metamorphism. The stone is thought to emanate peace and harmony for body and soul.
FOUND IN: COLOMBIA, BRAZIL, SOUTH AFRICA, ZIMBABWE, RUSSIA, & USA.
The name emerald comes from the Greek “smaragdos” via the Old French “esmeralde”, and really just means ‘green gemstone.’ The wonderful green color of emerald is unparalleled in the gem world. It is not surprising then that emerald is classified as one of the traditional four precious stones along with sapphire, ruby and diamond. Emerald is the birthstone for May and for commemorating the 20th and 35th wedding anniversaries.
Emerald derives it’s glorious green color from the presence of chromium and vanadium. Emeralds are rarely flawless, therefore stones are often enhanced by oiling them to hide the imperfects. As well, the step cut (or emerald cut) is used to maximize the stone.
Ancient mythology teaches us that the Emerald was associated with the Mercury, who was known to be the messengers of the gods, and of travel. It thus makes perfect sense that the Emerald is commonly referred to as the Travelers Protection Stone.
A lesser known “odd” fact of the Emerald is that when subjected to heat, it will actually sweat or expel water. Ancient writings speak of this extraordinary phenomenon.
Innumerable fantastic stories have grown up around this magnificent gem. The Incas and Aztecs of South America, where the best emeralds are still found today, regarded the emerald as a holy gemstone. However, probably the oldest known finds were once made near the Red Sea in Egypt. These gemstone mines, already exploited by Egyptian pharaohs between 3000 and 1500 B.C. and later referred to as ‘Cleopatra’s Mines’, had already been exhausted by the time they were rediscovered in the early 19th century. Written many centuries ago, the Vedas, the holy scriptures of the Indians, say of the precious green gems and their healing properties: ‘Emeralds promise good luck…’ and ‘The emerald enhances the well-being…’. So it is no wonder that the treasure chests of Indian maharajas and maharanis contained wonderful emeralds.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Durable, anti-fog safety glasses that fit comfortably on any head size.
This set includes two (2) N95 NIOSH approved respirators.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Experience this sphere powered by the sun!
This kit includes several different projects that demonstrate the power of magnets!
This magic bird defies gravity before your very eyes!
The Wimshurst Machine is a high quality static machine for student labs.
Learn how solar cells transform light into electrical energy with this great kit!
Make the coolest 3D pin art on your desk with this amazing desk toy.
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.