The colour blue represents our throat chakra, the focus of our creativity and individualism. And colour experts believe that you should wear blue while making an important public speech — it helps us remember better, helps ease anxiety and fear. The ancient Egyptians also used lapis lazuli to signify heaven and blue is also believed to be the colour of the spirit. It's also considered the colour of inspiration, sincerity and spirituality. In advertising, it is used to convey a personality that is trustworthy and dependable. If you are looking for balance in your life, meditating on blue stones such as turquoise, celestite, blue quartz, lapis lazuli, sodalite, and blue topaz is a good idea.

Many scientific studies have been conducted to find out the effect colours have on our emotions and memories. We tend to respond to colours very well and it has now become an integral part of our evolution. Our base chakra, the root of who we are as individuals is red, so it is interesting to see what effect the colour red has on us. Research shows that red not only induces emotional reactions, it can also move us bodily by raising the rate of breathing and blood pressure. The phrase 'seeing red' stands for being angry, however, the physical implication is from the red flush of cheeks, a natural physical reaction to anger.

Kunzite is a gorgeous pink gemstone, but can lose its colour due to prolonged exposure to sun light. Even though the colour fading is minimal and not visible to the naked eye, many people prefer wearing the gemstone in the evening. Therefore, kunzite is often viewed as an evening stone. Its deposits are wide and yield large amounts of this gemstone, making it very reasonable. Kunzite is found in large crystals which can yield flawless gemstones. It is a soft and delicate gemstone that can get chipped off easily with a knock. Therefore, its usage is limited to jewellery.

Orthoclase is a rare transparent yellowish variety of the mineral Sanidine found in Madagascar. It has a very pleasant yellow colour with tinges of brown in it. A darker yellow shade has a huge demand and the champagne shades are popular as well. Apple green is a newly discovered variety but its production is limited. The colour of Orthoclase gemstones is natural and is not treated or enhanced by heat. They are mostly found in Africa and also Myanmar (Burma), Tanzania and Brazil.

What colour is the Sun? You may wonder, 'what tomfoolery is this'? But contrary to popular belief, the sun is actually white! Yes, you read it right. It looks yellow because of the atmosphere that we live in. Photons of light from across the visible spectrum reach the Earth's atmosphere but extra energetic (and shorter wavelength) photons are scattered away by particles in the atmosphere. So, we don't see blue and violet colours from the Sun as they're scattered across the sky. This is the same reason the sky appears blue to us. Atoms with longer wavelengths, yellow, orange and red (the longest) have a better chance of making it through the atmosphere without being scattered. For most of the day, the Sun's light is passing through enough of the atmosphere that the yellow region of the spectrum is most represented.

Back in 2012, beekeepers near the town of Ribeauville, in the north-eastern region of Alsace, France, complained their bees were producing blue honey - the reason being a biogas plant that processed waste from an M&M's factory. The bees picked up the sugary waste from the plant operated some 2.5 miles away from their apiaries. The plant managers reported that they would clean the containers and store waste in airtight containers to prevent the incident from happening again. However, bees are clever enough to suspect the best resources of sugar. This meant losses for honey producers as they couldn't put the tainted honey bottles on shelves as it no longer tasted or looked like honey.