Weight (Specific Gravity): Moderate – Ranges from 2.9 to 3.0. It feels similar in heft to quartz or topaz, not particularly light or heavy for a mineral.
Treatment: Boracite is not known to be treated in the gem trade. Its rarity and status as a collector’s crystal mean specimens are valued in their natural state. Synthetic versions are produced for industrial research, not for gem purposes.
Body (Clarity/Transparency): Boracite is typically transparent to translucent. Gem-quality material is transparent. It has no cleavage, which is favorable, but its tenacity is brittle. It can be colorless, white, gray, yellow, green, or blue, often with strong vitreous to adamantine luster.
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