Search results
Results from the WOW.Com Content Network
Pink sapphire. Pink sapphires occur in shades from light to dark pink, and deepen in color as the quantity of chromium increases. The deeper the pink color, the higher their monetary value. In the United States, a minimum color saturation must be met to be called a ruby, otherwise the stone is referred to as a pink sapphire. [10]
Sapphires are a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.
However, since rutile is present in most common star gemstones, these are almost never completely transparent. A distinction can be made between two types of asterism: Epiasterism, such as that seen in sapphire and most other gems, is the result of a reflection of light on parallel arranged inclusions inside the gemstone.
A rare type of sapphire, padparadscha sapphire, is pink-orange. The name "corundum" is derived from the Tamil - Dravidian word kurundam (ruby-sapphire) (appearing in Sanskrit as kuruvinda ). Because of corundum's hardness (pure corundum is defined to have 9.0 on the Mohs scale ), it can scratch almost all other minerals.
Examining a pink sapphire under a gemmological microscope. Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a specific interdisciplinary branch of mineralogy. Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify and evaluate gems. [1] [2]
Jack Nicholson spent some quality time with his loved ones over the holiday season.. In an Instagram post shared by his daughter Lorraine Nicholson on Thursday, Jan. 2, the actor, 87, was captured ...
Sapphirine is a rare mineral, a silicate of magnesium and aluminium, with the chemical formula (Mg,Al) 8 (Al,Si) 6 O 20 (with iron as a major impurity). Named for its sapphire-like colour, sapphirine is primarily of interest to researchers and collectors: well-formed crystals are treasured and occasionally cut into gemstones.
The numbers get more jaw-dropping the deeper into the weeds you go. The SEC is 50-19 in top-100 quality games so far this season, per Bart Torvik’s ratings. No other conference is even within ...