Spessartine identification and geology

Browse this collection and related resources

• Browse all mineral identification entries — Compare this entry with the complete GeoMiner minerals collection.
• Previous: Sodalite — Sodium aluminum silicate chloride with rich royal blue color. Member of the sodalite mineral group.
• Next: Spessartite — Alternative name for spessartine garnet. Vivid orange manganese-aluminum garnet increasingly popular in fine jewelry.
• Almandine
• Zircon

Sources, scope & corrections

These authoritative resources support category-level nomenclature, terminology, identification methods, and safety. When a specimen-specific safety warning appears, the public-health source listed here directly supports that precaution. They are not line-by-line citations for every other property on this entry, and natural specimens vary.

Editorial owner

GeoMiner

Last updated

2026-03-30T14:36:48.314256+00:00

Review status

Published; not independently peer-reviewed

• IMA–CNMNC List of Mineral Names — International Mineralogical Association. Official mineral-name, nomenclature, and classification records.
• Mineral ID Key — Mineralogical Society of America. Physical-property identification methods, repeat-testing guidance, and limitations.

Read GeoMiner's editorial methodology or report a content issue.

Common questions

What is Spessartine?

Manganese-aluminum garnet with vivid orange to reddish-orange color. Increasingly popular as a gemstone.

How can you identify Spessartine?

Compare several properties rather than relying on colour alone. This entry records colour: Orange, reddish-orange, brown; lustre: Vitreous; streak: White; Mohs hardness: 7-7.5; cleavage: None; crystal system: Isometric Cubic; transparency: Transparent to translucent. Confirm an important identification with additional field tests or qualified laboratory work.

How does Spessartine form?

Forms in manganese-rich metamorphic rocks and granitic pegmatites.

Where is Spessartine commonly found?

Namibia, Nigeria, Mozambique, Brazil, Sri Lanka; found in pegmatites and Mn-rich skarns.

What is Spessartine commonly confused with?

Spessartine may be confused with Almandine, Hessonite, Zircon. Compare multiple diagnostic properties because colour and surface appearance can overlap.