Flux Grown Blue Spinel Crystals/Clusters

4 years ago
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Flux Blue Spinel Rough Crystals

Blue Spinel grown by flux method. Extremely close to natural spinel in all properties. Collectable Crystals also suitable for faceting.

Chemical composition: Mg(Al2O4)
R.I. = 1.712 - 1.736
Specific gravity: 3.60
Mohs Hardness: 8
Crystal system: Cubic

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