sedimentary

Cream River Jasper

Silicified microcrystalline quartz (SiO2)

Hardness: 6.5-7 (Mohs scale); Color: Creamy white to pale pink with tan or ochre veining; Luster: Vitreous to waxy (especially when polished); Crystal Structure: Hexagonal (microcrystalline); Cleavage: None; Specific Gravity: 2.6-2.9.

Hardness: 6
Color: Creamy white to pale pink with tan or ochre veining
Luster: Vitreous to waxy (especially when polished)

Identified May 29, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed primarily through the infiltration of silica-rich fluids into volcanic ash or fine-grained sediment. Over millions of years, the material undergoes mineralization, with the vein patterns created by oxidation of iron or manganese during petrifaction.

Uses & applications

Used extensively in lapidary work for cabochons, beads, and pocket stones. It is also popular in metaphysical practices as a grounding stone and used for ornamental internal decor.

Geological facts

Jasper is often referred to as the 'Supreme Nurturer.' This specific creamy variety is frequently sold in 'tumbled' form, making it a staple for stone collectors and jewelry makers due to its durability and unique veined aesthetics.

Field identification & locations

Identify by its opacity (unlike translucent agate) and its high hardness (it cannot be scratched by a steel knife). Look for the characteristic 'brecciated' or veined appearance which indicates mineral infilling of cracks.

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