gemstone

Amethyst

Silicon Dioxide, SiO2

Hardness of 7 on the Mohs scale, purple color ranging from pale lilac to deep violet, vitreous luster, and trigonal crystal system with no cleavage.

Identified October 20, 2026More gemstone →

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Physical properties

Hardness of 7 on the Mohs scale, purple color ranging from pale lilac to deep violet, vitreous luster, and trigonal crystal system with no cleavage.

Forms primarily in hydrothermal veins and gas cavities within volcanic rocks as silica-rich solutions cool and crystallize.

Widely used in high-end and fashion jewelry, ornamental carvings, and as a popular mineral specimen for collectors.

Amethyst was once considered as valuable as a diamond until extensive deposits were discovered in Brazil during the 19th century.

Easily identified by its distinct purple coloration and quartz crystal habit; commonly found in Brazil, Uruguay, and Zambia.

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