Exceptional XXL 154.15ct Natural Raw Tsavorite Garnet Specimen – Merelani Hills, Tanzania A massive 154.15-carat untreated raw Tsavorite (Green Grossular Garnet) crystal specimen direct from the famous Merelani Hills of Tanzania. Exhibiting a pleasant pastel mint-to-apple green body color in ambient light, this substantial crystal illuminates into a breathtaking, intense neon lime-green glow when backlit. The specimen features intricate natural crystalline growth textures, organic fracture faces, and fine metallic-grey graphite inclusions characteristic of prime Merelani geological formations. Weight: 30.83 grams / 154.15 carats Size: 42 x 35 x 15 mm Variety: Natural Tsavorite (Green Grossular Garnet) Color: Translucent Mint/Apple Green under reflective light; vivid electric neon green under backlighting/transillumination. Condition: 100% Natural, raw and untreated specimen with original crystalline surfaces and natural graphite matrix attachments. Luster: Vitreous to sub-adamantine Hardness: 7.0 - 7.5 on the Mohs scale Locality: Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania Rarity: Extremely Rare. Tsavorite rough exceeding 100 carats in weight is exceptionally scarce globally. High-mass specimens with great light transmission from Merelani represent a small fraction of total mining yields. Market worth: Premier auction and collector grade. Large natural Tsavorite rough of this mass commands significant market interest among high-end mineral connoisseurs and gemstone investors. Metaphysical: Renowned as a gemstone of vitality, abundance, and emotional balance. Resonating powerfully with the Heart Chakra, Tsavorite is believed to foster self-worth, diminish stress, and radiate positive, revitalizing energy. Vibrant Saturation: Shows remarkable color clarity and an intense chromatic response when exposed to direct lighting or backlighting, radiating a high-luminosity neon green hue throughout its interior lattice. Stunning Contrast: Features a striking visual aesthetic that pairs the bright, translucent green garnet matrix with metallic silver-black graphite flakes embedded along its surface edges. Investment Potential: Exceptional. As top-tier single-source Tanzanian gem deposits grow increasingly difficult to mine, unheated large-carat rough specimens from Merelani offer strong long-term value retention and growth. A spectacular 154.15ct raw Tsavorite crystal showcasing extraordinary size, classic Merelani graphite association, and luminous neon internal color transmission. Preserved in its pure, untouched natural form, this piece is an extraordinary acquisition for discerning gem and mineral collectors worldwide.