mineral
Yellow Beryl
Beryl (Be3Al2(SiO3)6)
AI-generated identification · may be incorrectHardness of 7.5 to 8 on the Mohs scale, yellow to yellowish-green color, vitreous luster, hexagonal crystal system, poor basal cleavage, and specific gravity of 2.60 to 2.90.
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Physical properties
Hardness of 7.5 to 8 on the Mohs scale, yellow to yellowish-green color, vitreous luster, hexagonal crystal system, poor basal cleavage, and specific gravity of 2.60 to 2.90.
Formation & geological history
Formed mainly in pegmatites and hydrothermal veins, as well as in metamorphic mica schists and granitic rocks.
Uses & applications
Used as a gemstone in jewelry and as a primary ore of beryllium metal.
Geological facts
Yellow beryl is sometimes referred to as heliodor when it has a golden-yellow or greenish-yellow tint, derived from the Greek words for sun and gift.
Field identification & locations
Identified by its distinct hexagonal crystal habit, high hardness, and lack of good cleavage, commonly found in countries like Brazil, Madagascar, Russia, and the USA.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary