Boracite

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Boracite

Boulby Mine, Loftus, North Yorkshire, England

Reference: 1373

Two generations of boracite, consisting of aggregated turquoise crystals of boracite in part overgrown by a later paler generation of crystals that appear tetragonal (Boracite crystals are orthorhombic). Mounted in a 60x40mm clear 'josie' box. Boracite colour depth alters when viewed in incandescent lighting and daylight

Formula: Mg₃B₇O₁₃Cl

Status: Sold

Dimensions: 40x24x16mm

Size: Miniature (M)