Quartz is the second most common mineral on the surface of the Earth after feldspar. It is made of silicon dioxide in a crystalline structure. Quartz naturally forms colourless six-sided crystals, and is transparent or slightly translucent. Quartz that is milky or is coloured has impurities in it. Quartz that is a pretty colour is usually given a different name, like amethyst.
Ris forRose quartz
Something is short if the highest part of it is much lower than the top of similar things. The woman in the picture is much shorter than the man in the picture. The opposite of short is tall.
Sis forSt John's Wort
Scientific name: hypericum perforatum
St John's wort is a small plant that is widely used as an effective treatment for depression. It has escaped in many countries and is listed as a noxious weed. The effects that make it so useful against depression are bad when eaten by livestock, as it affects the nervous system, causes light sensitivity and can cause miscarriage and even death in large enough doses.