Blue Sapphire, approx. 8 × 6 × 4 mm, from Malawi – 1 piece
This blue Sapphire from Malawi measures approx. 8 × 6 × 4 mm and shows a deep to vivid blue color with slightly varying intensity. The surface is fully polished and enhances the natural color of the stone. One side is slightly flattened, creating a balanced combination of natural shape and a practical flat base. The smooth surface allows light to move evenly across the stone and emphasizes its calm and high quality appearance. With its compact form, this specimen is suitable both for jewelry making and as a collector’s piece.
Geology & origin
Sapphire is the blue variety of the mineral corundum and consists of aluminum oxide. Its characteristic blue color is caused by trace elements such as iron and titanium within the crystal structure. With a Mohs hardness of 9, Sapphire is one of the hardest natural minerals and is therefore highly durable. Malawi is one of the known sources of corundum varieties such as Sapphire and produces material in different color variations, including blue specimens from both primary and secondary deposits. This piece shows the typical properties of Sapphire in a compact, polished form.
Application note
The stone is suitable, among other things, for jewelry making such as rings, pendants, or earrings, as well as for gemstone collectors. Due to the slightly flattened and polished side, the stone can be positioned easily in settings. Despite its high hardness, Sapphire should be protected from strong impacts to avoid chipping. For cleaning, lukewarm water and a soft cloth are recommended; aggressive cleaning agents are generally not necessary.