Kristalopedia
Red tiger's eye
Red tiger's eye • "Bull's eye" / "Ox's eye" Species: Quartz (SiO₂) with oriented fibrous structure (cat's eye effect / chatoyancy) Color origin: oxidation rich in hematite • often enhanced...
Red tiger's eye
Red tiger's eye • "Bull's eye" / "Ox's eye" Species: Quartz (SiO₂) with oriented fibrous structure (cat's eye effect / chatoyancy) Color origin: oxidation rich in hematite • often enhanced...
Iron tiger's eye
Iron tiger eye • also called "tiger iron" — metamorphic banded rock Composition: tiger eye quartz (SiO₂) + hematite/magnetite (Fe oxides) + red jasper (microcrystalline SiO₂) Textures: silky bands with...
Iron tiger's eye
Iron tiger eye • also called "tiger iron" — metamorphic banded rock Composition: tiger eye quartz (SiO₂) + hematite/magnetite (Fe oxides) + red jasper (microcrystalline SiO₂) Textures: silky bands with...
Oolitas
Oolite • Oolite (oolitic limestone; sedimentary rock) Grains: ooids (0.2–2 mm) — concentric CaCO₃ shells Mineralogy: Calcite / aragonite ± dolomite, iron oxides Environment: Warm, shallow, agitated water (shallows, tidal...
Oolitas
Oolite • Oolite (oolitic limestone; sedimentary rock) Grains: ooids (0.2–2 mm) — concentric CaCO₃ shells Mineralogy: Calcite / aragonite ± dolomite, iron oxides Environment: Warm, shallow, agitated water (shallows, tidal...
Nuummite
Nuummite • metamorphic rock rich in amphiboles (gedrite and anthophyllite) Signature: shimmering schiller from very thin metallic lamellae (ilmenite/magnetite) Mohs: ~5.5–6 • SG: ~2.9–3.2 • Luster: semi-glassy; fibrous — silky...
Nuummite
Nuummite • metamorphic rock rich in amphiboles (gedrite and anthophyllite) Signature: shimmering schiller from very thin metallic lamellae (ilmenite/magnetite) Mohs: ~5.5–6 • SG: ~2.9–3.2 • Luster: semi-glassy; fibrous — silky...
Kunzites
Kunzite • pink–violet spodumene (LiAlSi₂O₆) variety Crystal system: monoclinic • pleochroism (strong) • cleavage: perfect in two directions Hardness: 6.5–7 • SG: ~3.18 • Luster: vitreous Features: soft color due...
Kunzites
Kunzite • pink–violet spodumene (LiAlSi₂O₆) variety Crystal system: monoclinic • pleochroism (strong) • cleavage: perfect in two directions Hardness: 6.5–7 • SG: ~3.18 • Luster: vitreous Features: soft color due...
Crystal with inclusions
Quartz with inclusions • SiO₂ containing minerals, fluids, and gas bubbles Motifs: sagenitic needles • tourmaline rods • chlorite "moss" • phantoms • enhydros Mohs ~7 • SG ~2.65 •...
Crystal with inclusions
Quartz with inclusions • SiO₂ containing minerals, fluids, and gas bubbles Motifs: sagenitic needles • tourmaline rods • chlorite "moss" • phantoms • enhydros Mohs ~7 • SG ~2.65 •...