Mined from: Madagascar

Description: Yellow sapphire is a yellow variety of corundum, one of the hardest natural minerals with a Mohs hardness of 9. Its color is caused primarily by trace amounts of iron within the aluminum oxide crystal structure. Rough yellow sapphire from Madagascar commonly ranges from pale yellow to deeper golden tones and may appear as irregular crystal fragments or partially formed hexagonal crystals. Madagascar has been a major source of sapphires since the late 1990s and produces a wide range of gem-quality corundum.

These sapphires form under high-temperature geological conditions in metamorphic rocks or basalt-related deposits. Over time, erosion releases the durable crystals into alluvial gravels where they are mined. Rough sapphire is widely used by gem cutters and lapidaries who wish to facet or study the natural structure of the stone before cutting.

Chemical Composition: Al₂O₃

Small
Approximate Size of 1 Piece: 14mm x 13mm x 10mm
Approximate Weight of 1 Piece: 4g

Medium
Approximate Size of 1 Piece: 12mm x 10mm x 9mm
Approximate Weight of 1 Piece: 3g

Large 
Approximate Size of 1 Piece: 8mm x 7mm x 7mm
Approximate Weight of 1 Piece: 1.5g

Quantity: 1pc

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.