Inclusions serve as the "fingerprint" of the Mozambican origin, allowing gemmologists to distinguish these stones from synthetic counterparts or other geographic sources.
Fine, short "silk" (rutile needles) are common, though often less dense than those found in Mogok specimens. Gemmological Profile Mozambican Ruby
The discovery of the Montepuez ruby deposit in 2009 transformed the global gemstone market, establishing Mozambique as the world's premier source of high-quality rubies. These stones primarily occur within amphibolite-facies metamorphic rocks. Unlike the marble-hosted rubies of Myanmar, Mozambican rubies are chemically distinct, characterized by a higher iron content that bridges the gap between the classic "pigeon's blood" of Southeast Asia and the darker, iron-rich stones of East Africa. Color Profile and Optical Properties Inclusions serve as the "fingerprint" of the Mozambican
Displays strong dichroism, showing hues of orangey-red to purplish-red when viewed from different crystal orientations. Internal Characteristics and Inclusions Mozambican rubies are chemically distinct
Advanced spectroscopic analysis reveals a specific trace element profile: The primary colorant, providing the red hue. Iron (
): The specific ratios of these trace elements are used by laboratories to confirm Mozambique as the country of origin. Treatment and Market Integrity
