calcite on amethyst Brazil Ref541

This piece brings together two emblematic minerals: calcite and amethyst.

The calcite crystals, with their distinctive shape, stand out against a base of amethyst with clearly defined purple points. The contrast between the light tones of calcite and the deeper shades of amethyst gives the piece a naturally balanced look.

From Minas Gerais (Brazil), this specimen was collected in 2008 in a region long renowned for the richness of its deposits. The amethyst crystals from this area are widely known and have helped build Brazil’s international reputation in the mineral world.

Dimensions: width 55 mm X height 35 mm – weight 78 g (with stand).

🟢 Mineralogical Information

- Name: Calcite on amethyst

- Chemical formula: CaCO₃ (calcite) – SiO₂ (amethyst, quartz variety)

- Crystal system: Trigonal (calcite) – Hexagonal (amethyst)

- Color: White to translucent (calcite), purple (amethyst)

- Mohs hardness: 3 (calcite) – 7 (amethyst)

- Density: 2.7 (calcite) – 2.65 (amethyst)