Spinel Stone Black

Spinel

Spinel is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4 in the cubic crystal system. The name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals.

Rock (geology)

In geology, a rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects.

Black

Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus the Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates.

spinel

Noun

1. Any of several hard minerals of cubic symmetry that are mixed oxides of magnesium and aluminium and are used as gemstones of various colours.
2. Any crystalline material, not necessarily an oxide, that possesses the same crystal structure as this mineral.

Noun

1. Spindle; the amount of yarn that fits on a spindle.

stone

Noun

1. A hard earthen substance that can form rocks; especially, such substance when regarded as a building material.
2. A piece of such material: a block of stone, rock or a pebble.

Adjective

1. Constructed of stone.
2. Having the appearance of stone.

black

Adjective

1. Absorbing all light and reflecting none; dark and hueless.
2. Without light.

Noun

1. The colour/color perceived in the absence of light, but also when no light is reflected, but rather absorbed.
2. A black dye or pigment.