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Pleochroism

en.wikipedia.org/wiki/Pleochroism

Pleochroism is an optical phenomenon in which a substance appears to be different colors ... Anisotropic crystals have double refraction of light where light of different polarizations is bent diffe...

Crystals Colour and Light

www.chemistry.co.nz/crystals_light.htm

How do crystals get their color? The presence of different chemicals causes the variety of colors to different gemstones. Many gems are simply quartz crystals ...

Crystal Colors Explained | Crystal Vaults

www.crystalvaults.com/crystal-colors-explained

Colors have many meanings to people mostly based on their culture and religion. But the natural crystals and minerals have no culture and no religion. They are ...

Color: Mineral Properties - The Mineral and Gemstone Kingdom

www.minerals.net/resource/property/color.aspx

Information on the mineral property Color. ... which have slight additions of color- causing elements in some specimens that cause it to be a different color. ... Together with color, a crystal shape can identify most of the better known minerals.

A crystal of a different color: One chemical forms two colors of ...

www.sciencedaily.com/releases/2013/08/130804081117.htm

Aug 4, 2013 ... Chemists have unexpectedly made two differently colored crystals -- one orange, one blue -- from one chemical in the same flask while ...

Why do different crops of crystals have different colors ...

www.researchgate.net/post/Why_do_different_crops_of_crystals_have_different_colors

Nov 7, 2012 ... For the same compounds, why do crystals obtained from different crops not have the same color? And in NMR spectra, they are same?

The meanings of Colors - Crystal Cure

crystal-cure.com/color-meanings.html

Color symbolism, color and personality, gemstone color & meaning. Color can influence our emotions, our actions and how we respond to various people, things ...

Color Energy and Color Therapy — Crystal Meanings

meanings.crystalsandjewelry.com/color-energy-and-color-therapy/

Learn about the energies of different colors, how they affect us, and what they mean in color therapy.

Learn About Crystals - Home Science Tools

www.hometrainingtools.com/a/learn-about-crystals

Sugar crystals and rock crystals are made up of different chemical elements, too. ... elements the crystal is made out of will make it a unique shape and color.

Color symbolism and crystals

www.sunnyray.org/Color-crystals.htm

In order to grasp the concept of color formation in crystals, let us take into consideration different metals. In metal crystals, a certain number of outer electrons is ...

More Info

Why do crystals, like quartz and diamonds, form in different colors?

earthscience.stackexchange.com

Apr 18, 2014 ... Some crystals, like quartz and diamonds, form in a variety of different colors. For example, quartz can be clear, 'foggy', pink, yellow, and even ...

How Gemstones Get Their Colors - GemSelect

www.gemselect.com

Mar 11, 2008 ... Learn how the different gem varieties get their color. ... meaning that they are colored by impurities or trace elements in their crystal structure.

PNNL: News - A crystal of a different color

www.pnnl.gov

Aug 2, 2013 ... RICHLAND, Wash. – Chemists have unexpectedly made two differently colored crystals - one orange, the other blue - from one chemical in the ...