For me this is the worst part of the migraine. Sure the headache is terribleâ¦but the post period (postdrome)â¦agh! Usually, a 36 to 48 hr period of comeplete listlessness and nausea. I feel like I had a lobotomy and my head is a empty vesselâ¦Nicholsonâs character at the end of One Flew Overâ¦ comes to mind.
Alexandrite, a strongly pleochroic (trichroic) gem, will exhibit emerald green, red and orange-yellow colors depending on viewing direction in partially polarised light. However, its most distinctive property is that it also changes color in artificial (tungsten/halogen) light compared to daylight.tones that show a dramatic color change and strong colors (e.g. red-to-green) are rare and sought-after, but stones that show less distinct colors (e.g. yellowish green changing to brownish yellow) may also be considered alexandrite by gem labs such as the Gemological Institute of America.
Nephrite generally occurs in creamy white, mid-to deep olive green, brown and black. It has a smooth surface polish with a waxy sheen and is more commonly found. Jadeite may be a white-gray green, leafy green, blue or blue-green, emerald green, lavender, pink, red, orange, greenish-black or black.