
gemstone
Yellow Sapphire
Corundum (Al2O3)
AI-generated identification · may be incorrectHardness of 9 on the Mohs scale, yellow color due to trace iron, vitreous luster, trigonal crystal system, and no true cleavage.
Identified More gemstone →
Explore Yellow Sapphire in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 9 on the Mohs scale, yellow color due to trace iron, vitreous luster, trigonal crystal system, and no true cleavage.
Formation & geological history
Formed in metamorphic or igneous rocks like pegmatites and marbles under high pressure and temperature over millions of years.
Uses & applications
Widely used in fine jewelry, luxury watches, and industrial applications requiring high durability.
Geological facts
Yellow sapphire, often called Pukhraj stone, is associated with prosperity and good fortune in Vedic astrology.
Field identification & locations
Identified by its extreme hardness, high density, and characteristic yellow hues. Commonly sourced from Sri Lanka, Madagascar, and Thailand.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Pearl necklace
Pearl, primarily aragonite (CaCO₃) and conchiolin
gemstone