Sapphire Rough Crystal from Madagascar
About This Specimen
This compact sapphire specimen from Madagascar presents as a dark blue-gray, roughly blocky crystal with subdued faces and pale weathered markings across its surface. Its upright proportions and distinct color zoning from charcoal blue to gray give the small piece a strong thumbnail-scale presence.
Specimen Details
- Mineral / Specimen Type: Sapphire variety of corundum; rough mineral specimen
- Locality: Madagascar
- Form & Structure: Rough, blocky single crystal with truncated ends, worn edges, and irregular surface texture
- Color: Dark blue-gray to charcoal blue with lighter gray areas and scattered pale surface markings
- Rarity: Uncommon as a natural collectible sapphire crystal of this form; sapphire as a mineral variety is not inherently rare
- Mohs Hardness: 9
- Luster: Dull to subvitreous on the photographed surfaces; corundum may show vitreous to adamantine luster on fresher faces
- Chemical Formula: Al₂O₃
- Specimen Size: Thumbnail
- Dimensions: 1.5 × 1.2 × 1.9 cm
- Specimen Weight: 9.7 g (mineral only)
- Total / Display Weight: 60 g
About Sapphire
Sapphire is a gem variety of corundum, an aluminum oxide mineral in the trigonal crystal system. Corundum ranks 9 on the Mohs scale, making it one of the hardest naturally occurring minerals; trace elements can produce blue and many other sapphire colors, while red corundum is classified as ruby.
Traditional & Metaphysical Associations
In crystal and spiritual traditions, blue sapphire is associated with wisdom, focus, integrity, and thoughtful intention. Some collectors use it as a symbolic meditation or display stone connected with clarity and self-discipline. Metaphysical properties are based on traditional beliefs and are provided for cultural and informational purposes; they are not scientifically established or intended as medical advice.
Why This Specimen?
The crystal's compact upright profile, deep blue-gray body color, and naturally worn texture create a rugged display aesthetic. Its nearly two-centimeter height makes it well suited to a thumbnail collection.
Exact specimen pictured. You will receive the exact specimen shown in the photographs.