Top best answers to the question «Where does the blue cordierite mineral come from»
- Bluish-gray Cordierite has come from Haddam, Middlesex Co., Connecticut; and a deep blue Cordierite from Hungry Hill, Guilford, New Haven Co., Connecticut. Zoisite - The variety Tanzanite can appear similar, although it has perfect cleavage and is only known from the Arusha area of Tanzania.
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New Hampshire. Bluish-gray Cordierite has come from Haddam, Middlesex Co., Connecticut; and a deep blue Cordierite from Hungry Hill, Guilford, New Haven Co., Connecticut.
Cordierite Gemstones were named after a french geologist who first studied its crystals, Mr. Cordier. Find more details about Cordierite gems here.
Iolite is a variety of the mineral cordierite. This mineral was named after French geologist Cordier. The name iolite comes from ios, the Greek word for violet. Iolite is commonly known as "water sapphire" in its deep blue sapphire color.
What is Cordierite? Cordierite is a silicate mineral that is found in metamorphic and igneous rocks.It is typically blue to violet in color and is one of the most strongly pleochroic minerals. Cordierite has a chemical composition of (Mg,Fe) 2 Al 4 Si 5 O 18 and forms a solid solution series with sekaninaite, which has a chemical composition of (Fe,Mg) 2 Al 4 Si 5 O 18.
Cordierite or iolite is a magnesium iron aluminium cyclosilicate.Iron is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe) 2 Al 3 (Si 5 Al O 18) to (Fe,Mg) 2 Al 3 (Si 5 Al O 18). A high-temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (Si,Al) 6 ...
Corning® Celcor® substrates are the company’s hallmark environmental products made from a material called cordierite. Cordierite, discovered more than two centuries ago, is a naturally occurring mineral compound containing magnesium, iron, aluminum, and silicon. It’s found, among other places, near veins of tin in the mines of Southern England.
David Abercrombie/Flickr/CC BY 2.0 Another accessory mineral, cordierite is found in high-magnesium, high-grade metamorphic rocks like hornfels and gneiss. Cordierite forms grains that display a shifting blue-to-gray color as you turn it. This unusual feature is called dichroism.
General Cordierite Information : Chemical Formula: Mg2Al4Si5O18 : Composition: Molecular Weight = 584.95 gm Magnesium 8.31 % Mg 13.78 % MgO: Aluminum 18.45 % Al 34.86 % Al 2 O 3: Silicon 24.01 % Si 51.36 % SiO 2: Oxygen 49.23 % O: 100.00 % 100.00 % = TOTAL OXIDE
Cordierite was officially named after the French geologist, Pierre Louis Antoine Cordier (1777-1861) in 1813. The first significant and exciting discovery of large transparent, gem-quality deposits of iolite was made in 1996 in Palmer Creek, Wyoming (USA) by the American geologist, W. Dan Hausal.