What is Beryllonite?
Beryllonite is a rare phosphate mineral found in highly evolved pegmatites. It is usually pale and can be attractive as a small crystal, while its beryllium content gives it added geological interest.
Mineralogy and structure
Beryllonite has the formula NaBePO4 and crystallises in the monoclinic system. Hardness is about 5.5-6 and specific gravity is approximately 2.8.
Colour and appearance
Crystals are colourless, white or pale yellow, with vitreous, waxy or greasy lustre. Prismatic and tabular forms can occur with feldspar, quartz, tourmaline and other pegmatite phosphates.
Formation and localities
It forms in phosphate-rich pockets of granitic pegmatites. The type locality is Sugarloaf Mountain in Maine, United States; other material is known from Brazil, Canada, Madagascar and Namibia.
Collecting and care
Beryllonite can be confused with other pale pegmatite phosphates, so a documented locality is valuable. Do not cut unknown beryllium-bearing material and protect fine crystals from impact.
Beryllonite and zodiac signs
Crystal guides may associate Beryllonite with Virgo or Gemini because of its pale appearance and pegmatite setting. These links are cultural rather than scientific.
Symbolic and esoteric associations
In symbolic writing, beryllonite may stand for clarity and careful observation. The meaning can accompany a mineral label but cannot replace analytical identification.
