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0.45 ct Chrome Fluoro-Pargasite Amphibole - Mogok - MYANMAR
SKU: AMPH0001 | Location: Vault 1
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Chrome Fluoro-Pargasite represents the "neon-emerald" peak of the complex amphibole world. A rare, chromium-rich variety of the pargasite series, it is a species highly respected for its "electric" intensity and its status as a significant rarity among the Mogok treasures. While common Pargasite can be attractive, the specific addition of chromium and fluorine in the lattice creates a "vibrant" green that feels almost impossible in a silicate structure. For the specialist, Chrome Fluoro-Pargasite is a prize of geochemical concentration ; it offers a vitreous luster and a "liquid" brilliance that makes it a true "high-saturation" asset for the systematic vault.
The Heritage & Scientific Discovery
Historical Significance: Chrome Fluoro-Pargasite is a vital species for understanding the interaction between deep-seated metamorphic fluids and chromium-rich host rocks. Historically, it was often misidentified as fine Emerald or Chrome Diopside until precise mineralogical analysis ( Ref: Day et al., 2019 ) revealed its unique "fluorine-dominant" amphibole structure. In the world of fine minerals, it is celebrated for its natural, neon-green glow . It stands as a symbol of chemical harmony, bridging the gap between common rock-forming minerals and the elite world of "hyper-saturated" precious gems.
Structural Rarity: The mineral series was formally named after its type-locality in Pargas, Finland, but the Chrome-Fluoro variety found its ultimate expression in Southeast Asia. Scientifically, it is a member of the calcium amphibole group. Its discovery in the marble-hosted deposits of Mogok, Myanmar provided mineralogists with the first clear look at how fluorine and chromium can stabilize a crystal to produce "gem-grade" transparency. Because of the fluorine content, the crystals possess a superior clarity and "crispness" compared to standard pargasites, allowing for faceted gems that look "alive" even in low-light conditions.
Important Mines: The undisputed world capital for the finest, "neon-green" Chrome Fluoro-Pargasite is the Mogok Stone Tract in Myanmar. These Burmese specimens set the global benchmark for color saturation and crystalline "fire." While high-quality crystals are found in the Badakhshan region of Afghanistan, the Myanmar material remains the primary choice for the systematic vault due to its unmatched "chromatic-vibrance" and legendary status among the rarest Burmese silicates.
Mineralogical Profile
Technical Description: Chrome Fluoro-Pargasite is a complex silicate crystallizing in the monoclinic system. It sits at a 5.5 to 6 on the Mohs scale , making it a durable collector's gem, though its characteristic amphibole cleavage requires a master's touch to facet. It is identified by its strong pleochroism , shifting between shades of bright green and yellowish-green, and its specific 110 cleavage at 56° and 124°.
It has a refractive index of n 1.630 to 1.660 and a specific gravity of SG 3.0 to 3.2 . Often found in association with Mogok Calcite, Spinel, and Phlogopite, this specimen represents an "eye-clean" transparency that highlights the sophisticated, three-dimensional geometry of the mineral's growth. It is a high-vibration mineral that offers a unique, "electric-green" beauty unlike any other amphibole species.
Chemical Formula: NaCa 2 (Mg 4 Cr)(Si 6 Al 2 )O 22 F 2
Gemstone Specifications
| Gem Variety | Fluoro-Pargasite |
| Origin | Myanmar |
| Weight | 0.45 carats |
| Color | |
| Dimensions | 5.6 mm x 4.4 mm x 1.8 mm |
| Shape | Emerald |
| Treatment | No treatment |
| Certificate | On Request |
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- Returns: We accept returns within 30 days of receipt.
- Condition: The gemstone must be returned in its original, unaltered condition.
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- Identity: Every stone is personally inspected by me. I take scientific accuracy seriously; however, with hundreds of species in the vault, I remain open to professional dialogue and corrections from fellow gemologists.
- Laboratory Certification: For "Investment Grade" stones, certifications from world-renowned labs (AIGS, GRS, etc.) can be obtained upon request.
- Note: Lab processing can take up to 2 months.
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Welcome to Freakingcat's Private Vault
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Known to the eBay community since 2003 as Freakingcat, I have spent two decades curated a premier private collection of rare minerals. Now based in Bangkok, Thailand—the heart of the gem trade—I am offering these hand-selected specimens to you directly.
Note on our New Account: eBay policies prevent me from transferring my historical feedback to this Thai-based venture. While our score starts fresh, my legacy of trust remains.
Secure & Professional: To ensure full legal compliance and global shipping reliability, all logistics are managed by my trusted agent and partner of 20 years, Asama James (Business Reg: 3100905529191).
The account is new; the passion and expertise are 20 years deep. Welcome to the Vault.