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Can rubies be blue?
Rubies are typically red gemstones due to the presence of chromium in their chemical composition, which gives them their characteristic red color. However, in certain rare cases, rubies can exhibit a blue hue due to the presence of a different element, such as iron. These blue-hued rubies are known as "sapphires," as they belong to the corundum family of minerals, which includes both rubies and sapphires.
What are some common uses of corundum?
Corundum is commonly used as an abrasive in sandpaper and grinding wheels due to its hardness. It is also used as a gemstone in jewelry, with red corundum known as ruby and all other colors classified as sapphire. Additionally, corundum is used in optics, such as in the manufacturing of laser components.
What is a red sapphire?
Ah, a red sapphire, isn't that just a delightful thought? It's like a beautiful ruby and sapphire combined, creating a stunning gem with a rich red color. Just imagine the vibrant hues and the way it would catch the light, truly a treasure to behold.
Is corundum valuable?
Yes, corundum is valuable, particularly in its gem-quality forms, which include sapphires and rubies. These gemstones are highly sought after for their beauty, rarity, and durability, making them popular choices in fine jewelry. The value of corundum can vary significantly based on color, clarity, size, and origin, with more intense colors and higher clarity generally fetching higher prices. Additionally, industrial corundum is used in abrasives and cutting tools, adding to its overall economic significance.
What is the plural of corundum?
Corundum.
What substance is a sapphire?
Sapphires are Corundum, the same gem family as Ruby.
What percentage of rubies is corundum?
100% of rubies are corundum. "Ruby" is a name made up by the gem trade for the mineral known as corundum, when it is red.
What gem mineral is an oxide of aluminum?
Ruby and sapphire are both gem varieties of the mineral corundum, an aluminum oxide.
What is the second hardest mineral on the Mohs scale after diamond?
On the Mohs scale of mineral hardness, corundum is listed as a 9, below diamond which has a rating of 10.
What is in a sapphire gem?
A sapphire gem is mainly composed of the mineral corundum and other trace mineral impurities that give it its color.
What is the value of corundum?
The value of the mineral corundum will vary according to its appearance. Gem quality corundum is highly valued. Non gem quality corundum has many industrial uses and is much less highly valued.
Are there green rubies?
No. Rubies are specifically a red variant of corundum. Any gem-quality corundum that is no red is considered a sapphire. Green sapphires do exist.
What makes a sapphire a sapphire?
A sapphire is any gem-quality corundum that is not red or pink.
How is a sapphire dependent on minerals explain?
Sapphire is a gem-quality variant of the mineral corundum.
Is there such thing as ruby?
Yes. Ruby is a red gem-quality variety of the mineral corundum.
What is the relation between rubies and sapphires?
Rubies and sapphires are both gem-quality variants of the same mineral: corundum. The only difference is in color. Red or pink corundum is ruby. Corundum in other colors is sapphire.
Is a sapphire a mineral?
Sapphire is a variant of the mineral corundum.
