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A small globular piece of fused metal or metals, usually 1 cm. in diameter

An igneous rock, similar to granite, having a coarse irregular texture. Pegmatites are a common host of minerals and specifically a priority target for well formed crystal minerals such as corundum and tourmaline

The formation of soil from the decomposition of organic matter

Any type of moss which has formed on peat as its substrate

An accumulated mass of decayed or partially decayed plant matter

The replacement of minerals in organic matter by calcareous, carbonaceous or siliceous minerals, which serve to solidify and preserve the form of the matter beyond its organic state

A depth of the earth’s surface or subsurface which is permanently frozen.

Intrusive igneous rock formed within olivine, the source of Peridot

A solid block of rock used to support a mine shaft

The arrangement of all know elements, natural or manmade, based on density and further grouped by prevalent characteristics where correlations are known to exist