gemstone
Imperial Topaz
Al2SiO4(F,OH)2
AI-generated identification · may be incorrectHardness of 8 on the Mohs scale, golden-orange to pinkish-orange color, vitreous luster, and an orthorhombic crystal system.
Identified More gemstone →
Explore Imperial Topaz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 8 on the Mohs scale, golden-orange to pinkish-orange color, vitreous luster, and an orthorhombic crystal system.
Formation & geological history
Forms in pegmatites and high-temperature hydrothermal veins, often associated with acidic volcanic rocks.
Uses & applications
Prized as a high-end gemstone for fine jewelry and sought after by mineral collectors.
Geological facts
Imperial topaz is the naturally occurring precious variety of topaz, historically mined mainly in Russia and Brazil.
Field identification & locations
Identified by its high density, perfect basal cleavage, and distinct orange dichroism. Found primarily in Ouro Preto, Brazil.
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