Puddingstone
What is Puddingstone?
Puddingstone is a conglomerate rock, characterized by rounded pebbles of various colors, most commonly quartz, set in a silica-rich matrix. The pebbles resemble the plums in a traditional plum pudding, hence the name. It is typically found in areas with ancient riverbeds or shorelines where the pebbles were naturally cemented together over time. The appearance can vary widely depending on the size, color, and density of the pebbles and the matrix. Puddingstone is often used as an ornamental stone.
Optical Properties
- Refractive Index
- Variable
- Pleochroism
- None
Discover Values
Puddingstone Market Value Calculator
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Puddingstone Localities Map
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Quick Facts
Physical Properties
- Color
- Variable, typically grey, brown, red, and white
- Hardness (Mohs)
- 6.5-7
- Density
- 2.65 g/cm³
- Luster
- Vitreous to dull
Chemical Properties
- Chemical Formula
- SiO2 (primarily)
- Elements
- Si, O
Also Known As
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