Tsavorite is a rare and vibrant green variety of grossular garnet, prized for its intense brilliance and rarity. Here’s a detailed description:

Basic Characteristics

• Chemical Formula: Ca3Al2(SiO4)3

• Mineral Group: Garnet (Grossular variety)

• Color: Bright green to deep forest green (caused by trace amounts of vanadium and/or chromium)

• Crystal System: Cubic

• Hardness: 7–7.5 on the Mohs scale

• Refractive Index: ~1.740

• Specific Gravity: 3.6–3.8

Appearance

• Tsavorite has a vivid, highly saturated green hue, often rivaling or even surpassing emerald in brightness.

• It typically exhibits excellent transparency and a high refractive index, giving it exceptional sparkle.

• Unlike emerald, it usually has fewer inclusions and is more durable, making it suitable for daily wear.

Origin

• First discovered in the 1960s in Tanzania and later in Kenya, within the Tsavo National Park region (hence the name “Tsavorite”).

• Today, it is mined primarily in East Africa, especially Kenya, Tanzania, and Madagascar.

Gemological Significance

• Considered one of the most valuable garnet varieties.

• Rare in larger sizes: stones over 5 carats are uncommon, and over 10 carats are exceptionally rare.

• Unlike many green gems, tsavorite is not treated or enhanced, making it highly desirable for collectors.

Symbolism

• Associated with vitality, prosperity, and renewal.

• Its lush green color symbolizes growth, abundance, and life energy.