igneous
Tumbled pale feldspar-rich stone (likely granite or quartzite fragment)
Indeterminate; possible quartz–feldspar aggregate, commonly granite or feldspathic quartzite
AI-generated identification · may be incorrectLight tan, fine-grained, matte to weakly waxy surface, with no visible crystals or cleavage at this scale. Likely hardness about 6–7 Mohs and specific gravity roughly 2.6–2.7; rounded edges indicate tumbling or natural abrasion.
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Physical properties
Light tan, fine-grained, matte to weakly waxy surface, with no visible crystals or cleavage at this scale. Likely hardness about 6–7 Mohs and specific gravity roughly 2.6–2.7; rounded edges indicate tumbling or natural abrasion.
Formation & geological history
Probably derived from weathered continental crust and later polished by handling or abrasion; its exact geological age and formation cannot be determined from the photograph.
Uses & applications
Suitable as a decorative pebble, craft material, or inexpensive lapidary specimen; not enough evidence to assess jewelry-grade quality.
Geological facts
The uniform rounded shape and smooth surface strongly suggest a tumbled stone rather than an untouched outcrop fragment.
Field identification & locations
Field identification requires a fresh surface, hand lens, streak, hardness, and acid tests: quartz-rich material scratches glass, while calcite fizzes in dilute hydrochloric acid. Common source regions include granitic terrains worldwide.
