Rock Identifier
Polished garnet bead bracelet (Garnet group, likely almandine–pyrope solid solution; commonly approximated as Fe₃Al₂(SiO₄)₃–Mg₃Al₂(SiO₄)₃) — gemstone
gemstone

Polished garnet bead bracelet

Garnet group, likely almandine–pyrope solid solution; commonly approximated as Fe₃Al₂(SiO₄)₃–Mg₃Al₂(SiO₄)₃

AI-generated identification · may be incorrect

Deep red to burgundy, transparent to translucent, vitreous luster, typically Mohs 6.5–7.5, and cubic crystal structure with no cleavage. The beads are drilled, polished, and likely contain natural inclusions and internal fractures.

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Physical properties

Deep red to burgundy, transparent to translucent, vitreous luster, typically Mohs 6.5–7.5, and cubic crystal structure with no cleavage. The beads are drilled, polished, and likely contain natural inclusions and internal fractures.

Formation & geological history

Garnets form mainly in metamorphic rocks such as schist and gneiss during regional metamorphism, though some occur in igneous rocks and alluvial deposits. Their ages vary widely, commonly millions to billions of years.

Uses & applications

Used for jewelry, abrasive materials, and mineral collecting; bead bracelets are inexpensive decorative gemstone products.

Geological facts

Garnet is a mineral group rather than one single mineral, and its red varieties are among the most recognizable gemstones. Unlike ruby, garnet generally lacks strong birefringence and often shows a distinctive warm wine-red color.

Field identification & locations

Identify by the wine-red color, glassy luster, rounded polishing, hardness, and absence of cleavage; glass imitations may show bubbles. Common sources include India, Madagascar, Mozambique, Tanzania, Sri Lanka, and the United States.