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Spessartine

Specimen cases holding small mineral samples on a reference tray, viewed from above.

Properties

Property table of the Wikipedia article “Spessartine”, reprinted as recorded in the fetch.
CategoryNesosilicate ; Garnet group
FormulaMn2+3Al2(SiO4)3
Crystal systemIsometric
ColorYellow through red
Crystal habitMassive to crystalline
CleavageNone
FractureSub-conchoidal
TenacityBrittle
Mohs scale hardness6.5 – 7.5
LusterVitreous
StreakWhite
DiaphaneityTransparent to translucent
Specific gravity4.19 calculated, 4.12 – 4.32 measured

From the Wikipedia article

Spessartine is a nesosilicate, manganese aluminium garnet species, Mn2+3Al2(SiO4)3. This mineral is sometimes mistakenly referred to as spessartite.

Source

Source record: crystal-compendium/spessartine/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.

https://en.wikipedia.org/wiki/Spessartine — revision id 1371467556. Text and properties from Wikipedia, licensed CC BY-SA 4.0.