A general sample, or choice representation of a mineral substance, plant or animal
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Tag: <span>S</span>
Bedded rock layering specific to an area
The weight of a measured volume of substance measured against another substance, such as water in the case of liquid and solid matter
Formed through various layers
A dissolving agent
Another term for rock layers
A substance which can be dissolved in liquid
An excavated area of a mine
A purposefully-placed pile of broken rocks
A plagioclase mineral and zeolite, Na2Ca4[Al10Si26O72].34H2O