cubic Nesosilicates
Rhodolite
(Mg,Fe)3Al2(SiO4)3
Crystal Structure
#! Species: Rhodolite (Pyrope-Almandine Garnet)
#! System: Cubic (m3m)
#! Habit: Dodecahedron-trapezohedron combination
cubic[m3m]:{110}@1.0 + {211}@0.7
cubic
m3m
{110} {211}
Quick Facts
Hardness
7.0
Specific Gravity
3.84
Refractive Index
1.76
Optical Character
Isotropic
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Open in PlaygroundPhysical Properties
Crystal Systemcubic
Hardness (Mohs)7.0
Specific Gravity3.84
CleavageNone
FractureConchoidal to uneven
LustreVitreous
Optical Properties
Refractive Index1.76
Optical CharacterIsotropic
Dispersion0.027
PleochroismNone (isotropic)
Colours
Purplish-redRaspberryRose-pinkPinkish-redViolet-red
Localities
TanzaniaSri LankaZimbabweBrazilMadagascarIndiaKenyaMozambique
Common Inclusions
Rutile needlesApatite crystalsZircon crystals with halosFingerprintsGrowth tubes
Known Treatments
Generally not treated
Crystal Forms
dodecahedrontrapezohedron
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Open in PlaygroundRelated Minerals
Other minerals in the cubic system
