Stone Silver

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.

Silver

Silver is a chemical element; it has symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form, as an alloy with gold (electrum) and other metals, and in minerals such as acanthite, argentite and chlorargyrite. Most silver is recovered as a byproduct of lead–zinc, copper and gold mining and refining.

Silver (color)

Silver or metallic gray is a color tone resembling gray that is a representation of the color of polished silver.

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.

silver

Noun

1. A lustrous, white, metallic element, atomic number 47, atomic weight 107.87, symbol Ag.
2. Coins made from silver or any similar white metal.

Adjective

1. Made from silver.
2. Made from another white metal.