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They are the same mineral. All are composed of aluminum oxide, Al2O3, with trace impurities of other metals.
I have often wondered the same thing, it simply cant be true since I have been studying geology and been an avid rock and mineral collector since I was 5, I have raw corundum that bares no ruby or fancy or cashmere sapphire.
I also know the composition of sapphire, and its color totally depends on the other elements and not just trace. Ruby is chromium and aluminum oxide (raw corundum) iron, titanium, chromium, copper, or magnesium can give corundum blue, yellow, purple, orange, or a greenish color.
To be exact since they are all aluminum oxides, and have the same hardness, I beleive that is why they categorized them all as sapphire. It would be a nightmare to reestablish Mohs hardness scale with different names for every color and say they are all 9 on the hardness scale. But to say they are all corundum isnt exactly true either.
What else can I help you with?
What is the mineral group of sapphire?
Sapphire comes from the corundum mineral family, which is an aluminum oxide (Al2O3). Corundum consists of pure aluminum oxide, it also contains trace amounts of other elements such as iron, titanium and chromium.
Is garnet made of ruby and sapphire?
No. Garnets are a different class of mineral and generally less valuable. Both ruby and sapphire are variants of corundum.
Ruby a mineral or a rock?
Ruby is a mineral and a variety of the mineral corundum. It is a gemstone known for its red hue, which comes from traces of chromium in its crystal structure. Rocks are made up of one or more minerals, so ruby itself is not considered a rock.
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.
What are facts about the mineral corundum?
Corundum is a crystalline form of aluminum oxide. It is one of the hardest minerals known, ranking 9 on the Mohs scale of hardness. Corundum comes in a variety of colors, with red corundum being called ruby and any other color being called sapphire.
What is the mineral of which sapphire and ruby are comprised?
The mineral corundum.
What is the mineral group for ruby?
Rubies are part of the corundum mineral group.
Is a sapphire a mineral?
Sapphire is a variant of the mineral corundum.
What is the mineral group of sapphire?
Sapphire comes from the corundum mineral family, which is an aluminum oxide (Al2O3). Corundum consists of pure aluminum oxide, it also contains trace amounts of other elements such as iron, titanium and chromium.
What gem mineral is an oxide of aluminum?
Ruby and sapphire are both gem varieties of the mineral corundum, an aluminum oxide.
What are blue like rubys?
Ruby is the common name for the reddish variety of the mineral corundum. Blue corundum is called sapphire.
Is garnet made of ruby and sapphire?
No. Garnets are a different class of mineral and generally less valuable. Both ruby and sapphire are variants of corundum.
What is a mineral with a hardness of 9?
Corundum is a mineral with a hardness of 9 on the Mohs scale. It is used as an abrasive and is also the mineral form of aluminum oxide. Sapphire and ruby are gem varieties of corundum.
Can you get a white ruby gemstone?
No. However, ruby is the gemstone version of red corundum. Any other color of corundum is considered a sapphire and it does come in white. So you are really describing white sapphire.
Is ruby a mineral or a rock?
The commercial name of the ruby is 'ruby rock'. In geological terms it is called as Goodletite. It is commonly found in Westland and New Zealand.
What is ruby's mineral group?
Ruby belongs to the mineral group Corundum
The main compound in ruby and sapphire?
The main compound in ruby and sapphire is corundum. It is made of transparent materials in both ruby and sapphire.
