Gemstones in the Elements class:
Gemstones in the Oxides class:
- CORUNDUM
- CHRYSOBERYL
- PERICLASE
- SPINEL
- TAAFFEITE
- Variety: ALEXANDRITE Variety: YELLOW-GREEN CHRYSOBERYL Variety: CAT'S EYE CHRYSOBERYL
Gemstones in the Carbonate class:
- AZURITE (often in combination with malachite)
- MALACHITE
- RHODOCHROSITE (both massive and crystalline)
- SINHALITE (a borate mineral)
Gemstones in the Phosphate class:
Gemstones in the Silicate class:
- ANDALUSITE
- AXINITE
- BENITOITE
- BERYL
- CORDIERITE
- DIOPSIDE
- EUCLASE
- THE GARNETS:
- JADE (a variety of two minerals: Jadeite and Nephrite)
- KORNERUPINE
- OLIVINE
- QUARTZ
- Crystalline Varieties:
- Variety: AMETHYST (violet)
- Variety: CITRINE (yellow to orange)
- Variety: PRASIOLITE (green)
- Variety: ROCK CRYSTAL (colorless)
- Variety: ROSE QUARTZ (pink)
- Variety: SMOKY QUARTZ
- Cryptocrystalline (CHALCEDONY) Varieties:
- Variety: AGATE (banded)
- Variety: BLOODSTONE (green with red flecks)
- Variety: CARNELIAN (orange to yellow)
- Variety: CHRYSOPRASE (green)
- Variety: JASPER (boldly patterned, multi-color)
- Variety: ONYX (black/white/banded)
- Variety: SARDONYX (golden-brown/white banded)
- PECTOLITE
- SCAPOLITE
- SPODUMENE
- TITANITE (also known as sphene)
- TOPAZ
- THE TOURMALINES:
- ELBAITE
- ZIRCON
- ZOISITE
- Variety: AQUAMARINE Variety: EMERALD Variety: GOSHENITE Variety: HELIODOR Variety: MORGANITE Variety: RED BERYL
- Variety: IOLITE
- Variety: PERIDOT
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- Variety: LARIMAR
- Variety: INDICOLITE
- Variety: TANZANITE