alumstones Definition
Definition
A type of sedimentary rock that forms in or near sea water, often consisting primarily of alumina, silica, and iron oxide. It is characterized by large, irregular, white or cream-colored crystals.
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A type of sedimentary rock that forms in or near sea water, often consisting primarily of alumina, silica, and iron oxide. It is characterized by large, irregular, white or cream-colored crystals.
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