sedimentary

Green Jasper with Quartz

Microcrystalline Quartz (SiO2)

Hardness of 6.5 to 7 on the Mohs scale, featuring green and white coloration with a vitreous to waxy luster and cryptocrystalline structure.

Identified October 18, 2026More sedimentary →

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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, featuring green and white coloration with a vitreous to waxy luster and cryptocrystalline structure.

Formed through the hydrothermal deposition of silica-rich fluids and alteration of sediments in ancient marine environments.

Used primarily in lapidary arts, ornamental carvings, and as a collector's mineral specimen.

Jasper varieties have been utilized by ancient civilizations for over 5,000 years to create tools, seals, and decorative jewelry.

Identify in the field by its conchoidal fracture, high hardness that scratches glass, and distinctive green and white mottled patterning.

Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion

Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Sandstone or Siltstone

Arenite (if sandstone)

Sandstone

Arenite

Shale

Shale (clastic sedimentary rock)

Shale (or Mudstone/Siltstone)

Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)