Gondite

Manganese-rich metamorphic rarity

Gondite, a metamorphic rock specimen
Metamorphic

Gondite is a rare, manganese-rich metamorphic rock consisting primarily of spessartine garnet and quartz. It forms from the metamorphism of manganese-rich sediments and is named after the Gond people of central India, near where it was first described.

Composition

spessartine garnet, quartz, rhodonite, rhodochrosite, manganese silicates

Where Found

Nagpur-Bhandara region (India), Madhya Pradesh (India), Ghana, Minas Gerais (Brazil), Namibia

Mohs Hardness

6-7

Fun Fact

Gondite can be so rich in garnet that it's been mined as a garnet ore — the spessartine garnets it contains are the orange-red variety prized in the gem trade.

Test Your Knowledge

Why is gondite named after an indigenous Indian people rather than a geological feature?

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