Search results
Results From The WOW.Com Content Network
Dravite species such as green chromium dravite and brown dravite are diamagnetic. A handheld neodymium magnet can be used to identify or separate some types of tourmaline gems from others. For example, blue indicolite tourmaline is the only blue gemstone of any kind that will show a drag response when a neodymium magnet is applied.
Batrachite, gemstones that were supposedly found in frogs, to which ancient physicians and naturalists attributed the virtue of resisting poison. (Medieval legend) (Medieval legend) Draconite , a mythical gemstone taken from the head of a dragon and believed to have magical properties.
The Infinity Stones are fictional items in the Marvel Cinematic Universe (MCU) media franchise, based on the Infinity Gems of the Marvel Comics.As expounded across several interwoven MCU multimedia titles, the six Infinity Stones are reputed to embody and control essential aspects of existence—Space, Mind, Reality, Power, Time, and Soul—thereby making them critical artifacts in the MCU and ...
Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US
A larvikite quarry in Larvik, Norway, 2008 Polished larvikite (marketed as "Blue Pearl Granite"), showing labradorescence, is a popular decorative stone. Light larvikite with a polished surface Larvikite is an igneous rock , specifically a variety of monzonite , [ 1 ] notable for the presence of thumbnail-sized crystals of feldspar .
Langgan was a qīng 青 "green; blue; greenish black" (see Blue–green distinction in language) gemstone of lustrous appearance mentioned in numerous classical texts. They listed it among historical imperial tribute products presented from the far western regions of China, and as the mineral-fruit of the legendary langgan trees of immortality ...
Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. Blue crystals are known under the name tanzanite. It has a vitreous luster and a conchoidal to uneven fracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfect cleavage.
Blue sapphires are evaluated based upon the purity of their blue hue. Violet and green are the most common secondary hues found in blue sapphires. [5]: 333–401 The highest prices are paid for gems that are pure blue and of vivid saturation. Gems that are of lower saturation, or are too dark or too light in tone are of less value.