gemstone

Yellow Agate

Silicon dioxide (chalcedony variety)

Hardness of 6.5-7 on Mohs scale, vibrant yellow color, waxy to vitreous luster, microcrystalline quartz structure with conchoidal fracture.

Identified October 18, 2026More gemstone →

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Physical properties

Hardness of 6.5-7 on Mohs scale, vibrant yellow color, waxy to vitreous luster, microcrystalline quartz structure with conchoidal fracture.

Forms by the deposition of silica from groundwater in cavities of igneous and sedimentary rocks, typically over millions of years.

Widely used in jewelry, ornamental carvings, polished specimens, and metaphysical crystal healing.

Agate has been prized since ancient times for amulets and seals, with the name originating from the Achates River in Sicily.

Identified by its waxy luster, hardness, and banded or solid yellow translucent appearance; found globally in volcanic rock cavities.

Ammolite

Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)

Gemstone Ring

N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ

Amber

Succinite (Organic Gemstone)

Diamond and Gold Jewelry

Carbon (Diamond) / Au (Gold)

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Pearl necklace

Pearl, primarily aragonite (CaCO₃) and conchiolin