As sand is solid, it does not dissolve in water, forming 2 different phases present in the mixture of sand and water. Hence, it is a heterogeneous mixture.

Silica (Quartz) is chemical compound silicon dioxide SiO2. Silica is often found in nature as sand (non coastal), usually in the form of quartz.

The chemical compound silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with a chemical formula of SiO2 and has been known for its hardness since antiquity. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.

In the United States, sand is commonly divided into five sub-categories based on size: very fine sand ( 1⁄16 – 1⁄8 mm diameter), fine sand ( 1⁄8 mm – 1⁄4 mm), medium sand ( 1⁄4 mm – 1⁄2 mm), coarse sand ( 1⁄2 mm – 1 mm), and very coarse sand (1 mm – 2 mm).

Sand is a common material found on beaches, deserts, stream banks, and other landscapes worldwide. In the mind of most people, sand is a white or tan, fine-grained, granular material. However, sand is much more diverse – even beyond the pink sand beaches of Bermuda or the black sand beaches of Hawaii.

At a high level, glass is sand that’s been melted down and chemically transformed. The sand commonly used to make glass is comprised of small grains of quartz crystals, made up of molecules of silicon dioxide, which is also known as silica.

The famous white-sand beaches of Hawaii, for example, actually come from the poop of parrotfish. The fish bite and scrape algae off of rocks and dead corals with their parrot-like beaks, grind up the inedible calcium-carbonate reef material (made mostly of coral skeletons) in their guts, and then excrete it as sand.

Only three places on earth have green sand; recently a supply has been found in Brazil. The rarest sands, from a collector’s perspective, are found at Pitcairn’s Island and Easter Island. Some sands, such as rare black and green sands in Hawaii, may not be collected due to their scarcity.

Most beach sand color range from pale cream to golden to caramel, but in select places around the world, sands can be red, brown, pink, orange, gold, purple, green, and black.

Most of the sand is made of sodalite. Other major component is dolomite (gray crystals). Sand sample from Namibia containing blue sodalite and gray dolomite. The sodalite sand from Namibia is probably not a natural sand.

Mix a pile of White with touch of Dioxazine Purple and a touch of Cadmium Yellow Medium. As the sand becomes drier, add more White.

What kind of sand do you put in paint? Coarse rather than fine sand will provide better traction when mixed with paint. Avoid using sand from the beach, which is likely to have impurities and yield poor results. Play sand—the type used for crafts and kids’ sandboxes—is suitable for mixing with paint.

If you want to mix Dioxazine Purple from Prism Violet, you have to add Phthalo Blue to make it more blue. Cobalt Blue and Quinacridone Magenta : If you prefer to use Cobalt Blue instead of the other blues that are available, you can use it to mix a purple that’s similar to Dioxazine Purple.

Did you know? These are the rarest colours in the world

1. Lapis Lazuli. Lapus Lazuli is a blue mineral so rare that in the Middle Ages and the Renaissance it was actually more valuable than gold.
2. Quercitron.
3. Cochineal.
4. Dragon’s Blood.
5. Mummy Brown.
6. Brazilwood.
7. Cadmium Yellow.

To make your own phthalo blue acrylic paint, you simply add your Phthalo Blue pigment to an acrylic medium such as some clear gesso acrylic and then mix the two together.

Color Temperature and Value List

Side by side, ultramarine blue (left) is very different than phthalo blue (right). If we mapped each color on the color wheel, we’d see that ultramarine tilts toward the violet side of the wheel, while phthalo shifts toward the green side. Instead of traditional phthalo blue, there are several alternative pigments.

There is no temperature bias in most violets – therefore is neutral. This Violet has a real blue bias – therefore it is cool. This blue has a slight reddish bias – therefore it is warm.

Those with linseed bonders have a warmer more yellow tint while those using a clear safflower will have a more neutral or cooler white. The Titanium Zinc White seemed the warmest with a slight yellow tinge, similarly, the Titanium White was quite warm which is what you’d expect.

Cool colors include green, blue, and purple, and variations of those three colors. Blue is the only primary color within the cool spectrum. Greens take on some of the attributes of yellow, and purple takes on some of the attributes of red. They are often more subdued than warm colors.

Art Spectrum® Rose Madder is a transparent red, cooler on the spectrum. It offers a low tinting strength, where it loses intensity when mixed with white. It can create a warm glow in landscapes where the sun is setting. Rose Madder can also be used in floral paintings for shadow and mid-tones on petals.

Warm & Cool Colors

• Warm colors — such as red, yellow, and orange; evoke warmth because they remind us of things like the sun or fire.
• Cool colors — such as blue, green, and purple (violet); evoke a cool feeling because they remind us of things like water or grass.

Perylene maroon is another rare red that is also darker than alizarin crimson meaning that you will have to mix lighter paint colors with it to get it even close to alizarin crimson.

The main thing about Potter’s Pink is that you have to discover its magic for yourself, mix it with every colour in your palette and see what you get.