Montebrasite twin (excellent) Matioli Coll.

Item Description

Montebrasite is a rare Li-Al phosphate found in granite pegmatites and looks like beryllonite, a rare Na-Be phosphate. The world's finest examples come from Minas Gerais and this is a stellar gem example. The water-clear, colorless, tabular crystal is a nifty fishtail-twin with sharp tapered edges. Complete all-around and pristine. RARE in this superlative quality and size. 65.25 carats or 13 grams mass. Ex Matioli Collection. Valued at $1500-2000 and worth it.