As doctors warn it can cause a dangerous reaction with a host of common drugs... 1  Researchers warn that grapefruit reacts with many medicines. 2  The fruit can cause devastating side-effects from stomach bleeding to kidney problems. 3  Doctors say the public is ignorant to the dangers and putting themselves needlessly at risk.
According to the definition of the question (based on light reflection and not light emission), a well-polished mirror is the the whitest substance on earth. The main reflection layer is usually made out of silver.
Citrine is from quartz mineral. Quartz is the most abundant mineral on earth and actually makes up 12% of the earthâs crust. Its color is usually a yellow to orange; however it might at times have a tinge of red or brown in it. Many times this stone is confused with Topaz.itrine is from quartz mineral. Quartz is the most abundant mineral on earth and actually makes up 12% of the earthâs crust. Its color is usually a yellow to orange; however it might at times have a tinge of red or brown in it. Many times this stone is confused with Topaz.