Kristalopedia
Diopters
Diopside • CaMgSi2O6 Pyroxene group • Monoclinic Mohs ~5.5–6.5 • two cleavage directions ~90° Diopside 🌿 — a fresh green pyroxene: from Alpine marbles to emerald-bright gems Think of a...
Diopters
Diopside • CaMgSi2O6 Pyroxene group • Monoclinic Mohs ~5.5–6.5 • two cleavage directions ~90° Diopside 🌿 — a fresh green pyroxene: from Alpine marbles to emerald-bright gems Think of a...
Chrizoprazas
Chrysoprase • green chalcedony (microcrystalline SiO₂) variety Color cause: trace Ni²⁺ (nickel) in silicon mass +/− fine Ni-silicate inclusions Mohs scale: ~6.5–7 • SG: ~2.58–2.64 • Luster: waxy-glassy • Transparency:...
Chrizoprazas
Chrysoprase • green chalcedony (microcrystalline SiO₂) variety Color cause: trace Ni²⁺ (nickel) in silicon mass +/− fine Ni-silicate inclusions Mohs scale: ~6.5–7 • SG: ~2.58–2.64 • Luster: waxy-glassy • Transparency:...
Chrizokola
Chrysocolla • hydrated copper silicate (variable composition) Silica association: often intergrown with chalcedony (semi-transparent called "gem silica") Hardness: ~2–4 (porous) • up to ~6.5–7 when silica-rich Typical forms: botryoidal crusts...
Chrizokola
Chrysocolla • hydrated copper silicate (variable composition) Silica association: often intergrown with chalcedony (semi-transparent called "gem silica") Hardness: ~2–4 (porous) • up to ~6.5–7 when silica-rich Typical forms: botryoidal crusts...
Agatas
Quartz family (chalcedony) Microcrystalline Mose 6.5–7 Agate 🌀 — formation, history, meanings, and everyday uses A friendly deeper look for curious readers who enjoy layered stories and layered stones. (Agate...
Agatas
Quartz family (chalcedony) Microcrystalline Mose 6.5–7 Agate 🌀 — formation, history, meanings, and everyday uses A friendly deeper look for curious readers who enjoy layered stories and layered stones. (Agate...