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Mineralien rough stones

Property Description
Appearance Raw, uncut, natural stone
Shape Irregular, natural crystal form
Color Varies (white, green, blue, etc.)
Size Varies (1 cm to 10 cm, or larger)
Texture Rough, uneven, may have fractures
Hardness Varies (Mohs scale 3-10)
Specific Gravity Varies (2 to 8)
Transparency Opaque to translucent/transparent
Luster Dull to glassy/resinous
Cleavage/Fracture Distinct cleavage or conchoidal fracture
Density Typically 2.5 to 7.5 g/cm³
Composition SiO₂, CaCO₃, etc., depending on mineral type
Origin Mines, riverbeds
Uses Gemstones, industrial, collection
Formation Cooling magma, sedimentation, metamorphism
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