Citrine
7Hardness (Mohs)
SiO₂:FeChemistry
4Known origins & mines
November's birthstone, the golden "merchant's stone" of abundance lore. Natural citrine is rare — most comes from the Ametista do Sul region of Brazil and neighboring Uruguay; Bolivia's Anahí mine uniquely yields ametrine alongside citrine. Associated with prosperity and solar energy.
Known origins & mines
Ametista do Sul Geode Belt · Brazil
World amethyst capital: basalt lava-tube geodes up to cathedral size are mined by shaft here and in neighboring Iraí. Pale-violet with laven…
Artigas Deposits · Uruguay
Across the border belt lies Uruguay's crown: deep saturated "Siberian-grade" purple with red-blue flashes that Brazilian material rarely mat…
Salamanca Citrine Fields · Spain
Iberian citrine heated from local amethyst fed European royal jewelry for centuries; Spanish heat-treatment tradition continues in La Alberc…