A group of Quartz crystals (variety rose quartz) forming an arrangement reminiscent of a palisade on a matrix of the same mineral, with good luster, transparency and an intense pink colour. Particularly noteworthy is the well-defined crystal morphology, as rose quartz only rarely develops such sharply defined crystal faces.
A classic Brazilian specimen, formerly in the collection of the late Rock Currier (No. 5105)
Geologically, the Berilo Branco claim is part of the Eastern Brazilian Pegmatite Province. Rose quartz crystallized in granitic pegmatites enriched in silica and volatile elements. Its pink colour is currently considered to be related to small amounts of phosphorus and aluminium incorporated into the crystal structure.
Berilo Branco claim, Aimorés pegmatite district, Sapucaia do Norte, Galiléia, Vale do Rio Doce, Minas Gerais Brazil
Specimen size: 11.1 ×5.9 × 3.9 cm = 4.37” × 2.32” × 1.54”
Main crystal size: 3.4 × 1.1 cm = 1.34” × 0.43”
|