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What is drip glaze? Drip glaze is a ceramic decoration technique that involves applying glaze to the surface of a ceramic piece, allowing it to flow naturally during the high-temperature firing process. This technique creates unique visual effects, with the glaze forming distinctive textures and color variations as it drips. Each piece thus has its own individuality. Drip glaze is commonly used...

The formation process of natural pearls. Natural pearls are believed to form due to injuries to the mantle tissue, which causes the mantle cells to displace. Just as humans have cells dedicated solely to bone formation, certain mantle tissue cells in pearl oysters are responsible for the biomineralization of the oyster (secreting calcium carbonate, the material that makes up both the shell...

The History of Agate Agate is a fascinating gemstone with a long and illustrious history dating back to the ancient Babylonians, Greeks and Romans. Named after the Achates River in the Mediterranean island of Sicily in the 4th century B.C., it exhibits a rainbow of colors. Appreciated from the beginning for its spiritual power and its outstanding beauty, early cultures discovered its...

Opal Origin Opal is a product of the semi-desert "outback" of Australia. In such areas, seasonal rainfall saturates the dry surface. The rainwater seeps into the ancient subterranean rocks, bringing with it dissolved silica (a compound of silicon and oxygen).During droughts, most of the water evaporates, leaving deposits of solid silica between rock crevices and layers of sedimentary rock beneath the earth....

History of Malachite Malachite is a green copper carbonate mineral. Its name may come from the Greek word "malache", meaning "mallow", because malachite's color is similar to that of mallow leaves. Alternatively, the name may have originated from the Greek word "malakos", meaning "soft", because malachite is soft compared to other minerals. Malachite is used as a source of copper and as...

Tiger's Eye Introduction Tiger's Eye is a variety of opaque, golden-brown fibrous quartz gemstone. More specifically, it is a type of coarse-grained quartz. However, unlike most quartz gemstones, Tiger's Eye is actually a pseudomorph of quartz. A pseudomorph is a mineral that has the same chemical composition as another mineral but has a different crystal structure. In the case of Tiger's Eye,...