Crystals
Apatite
Phosphate Mineral (Apatite Group) Hexagonal • Mohs ~5 Ca5(PO4)3(F,Cl,OH) Apatite 💙 — Neon Ocean Blues, Science You’ll Love, and Everyday Ways to Enjoy It Bright as a tropical lagoon and...
Apatite
Phosphate Mineral (Apatite Group) Hexagonal • Mohs ~5 Ca5(PO4)3(F,Cl,OH) Apatite 💙 — Neon Ocean Blues, Science You’ll Love, and Everyday Ways to Enjoy It Bright as a tropical lagoon and...
Aragonite
Carbonate Mineral • CaCO3 Orthorhombic • Polymorph of Calcite Mohs ~3.5–4 Aragonite 🌊 — Sea‑Born Sparkle, Cave Coral Forms, and Calm Coastal Blues From branching “cave coral” to sky‑blue nodules...
Aragonite
Carbonate Mineral • CaCO3 Orthorhombic • Polymorph of Calcite Mohs ~3.5–4 Aragonite 🌊 — Sea‑Born Sparkle, Cave Coral Forms, and Calm Coastal Blues From branching “cave coral” to sky‑blue nodules...
Angelite
Angelite • trade name for blue anhydrite (CaSO₄) Family: Calcium sulfate minerals (anhydrite ↔ gypsum) Crystal system: Orthorhombic • Cleavage: perfect in three directions (≈90°) Hardness: ~3–3.5 • SG: ~2.9–3.0...
Angelite
Angelite • trade name for blue anhydrite (CaSO₄) Family: Calcium sulfate minerals (anhydrite ↔ gypsum) Crystal system: Orthorhombic • Cleavage: perfect in three directions (≈90°) Hardness: ~3–3.5 • SG: ~2.9–3.0...
Ammonite
Fossil Cephalopod (Extinct) Devonian–Cretaceous • 409–66 Ma Shell: Aragonite → often replaced by calcite/pyrite/silica Ammonite 🐚 — Spirals of Deep Time, From Fossil Shelves to Gem Glow Ancient ocean travelers...
Ammonite
Fossil Cephalopod (Extinct) Devonian–Cretaceous • 409–66 Ma Shell: Aragonite → often replaced by calcite/pyrite/silica Ammonite 🐚 — Spirals of Deep Time, From Fossil Shelves to Gem Glow Ancient ocean travelers...
Chrysantemum
Chrysanthemum Stone • “Flower Stone” (菊花石) Not a single mineral: white radial crystals (calcite, aragonite, or celestine) in dark carbonate/shale matrix Typical age: Late Paleozoic to Mesozoic (many famous stones...
Chrysantemum
Chrysanthemum Stone • “Flower Stone” (菊花石) Not a single mineral: white radial crystals (calcite, aragonite, or celestine) in dark carbonate/shale matrix Typical age: Late Paleozoic to Mesozoic (many famous stones...
Amethyst
Quartz Family Crown & Third Eye Mohs 7 Amethyst 💜 — Meaning, History, Science & Ways to Work With It A friendly deep-dive for curious minds, crystal lovers, and anyone...
Amethyst
Quartz Family Crown & Third Eye Mohs 7 Amethyst 💜 — Meaning, History, Science & Ways to Work With It A friendly deep-dive for curious minds, crystal lovers, and anyone...