Amethyst is a gemstone, a variety of violet Quartz with the chemical formula is SiO2. Because it has a hardness of seven on the Mohs Scale, amethyst is suitable for use in jew â¦ elry. Due to its crystal quantity and relative rarity, larger samples can broach several hundred dollars.
An artist working on a watercolor using a round brush. Watercolor (American English) or watercolour (Commonwealth and Ireland), also aquarelle (French loanword), a diminutive of the Latin for water, is a painting method in which the paints are made of pigments suspended in a water-based solution. Watercolor refers to both the medium and the resulting artwork. The traditional and most common supportâmaterial to which the paint is appliedâfor watercolor paintings is paper. Other supports include papyrus, bark papers, plastics, vellum, or leather, fabric, wood, and canvas.
The great thing about painting with watercolors is you are in complete control of their opacity. Watch how one color can change depending on the ratio of water to paint on the brush! The brush stroke on the left shows what lots of water and not much paint looks like.