Crystals
Picasso jasper
Picasso “Jasper” • metamorphosed dolostone/limestone (marble) Also sold as: Picasso marble • Picasso stone Not a true jasper (quartz) — carbonate rock Mohs ~3–4 • SG ~2.7–2.9 • Cleavage: rhombohedral...
Picasso jasper
Picasso “Jasper” • metamorphosed dolostone/limestone (marble) Also sold as: Picasso marble • Picasso stone Not a true jasper (quartz) — carbonate rock Mohs ~3–4 • SG ~2.7–2.9 • Cleavage: rhombohedral...
Picture jasper
Picture Jasper • orbicular/banded jasper (microcrystalline SiO₂) Quartz family: chalcedony + moganite (opaque) Mohs ~6.5–7 • SG ~2.58–2.64 Signature: scenic banding & “landscape” patterns from iron/manganese oxides Famous fields: Owyhee,...
Picture jasper
Picture Jasper • orbicular/banded jasper (microcrystalline SiO₂) Quartz family: chalcedony + moganite (opaque) Mohs ~6.5–7 • SG ~2.58–2.64 Signature: scenic banding & “landscape” patterns from iron/manganese oxides Famous fields: Owyhee,...
Blue quartz
Blue Quartz • macrocrystalline SiO₂ Color cause: sub‑microscopic inclusions (dumortierite • riebeckite/crocidolite • rutile dust) + light scattering Mohs ~7 • SG ~2.65 • RI ~1.544–1.553 • No cleavage •...
Blue quartz
Blue Quartz • macrocrystalline SiO₂ Color cause: sub‑microscopic inclusions (dumortierite • riebeckite/crocidolite • rutile dust) + light scattering Mohs ~7 • SG ~2.65 • RI ~1.544–1.553 • No cleavage •...
Blue calcite
Calcite Family • CaCO3 Trigonal (Rhombohedral) • Strong Double Refraction Mohs ~3 Blue Calcite 🌥️ — Soft‑Sky Calm, Everyday Beauty As soothing as a quiet morning—gentle blues, velvety polish, and...
Blue calcite
Calcite Family • CaCO3 Trigonal (Rhombohedral) • Strong Double Refraction Mohs ~3 Blue Calcite 🌥️ — Soft‑Sky Calm, Everyday Beauty As soothing as a quiet morning—gentle blues, velvety polish, and...
Orange calcite
Orange Calcite • CaCO₃ — calcite (carbonate group) Crystal system: Trigonal (rhombohedral) • Cleavage: perfect in 3 directions (rhombohedral) Mohs: ~3 • SG: ~2.71 • Luster: vitreous (pearly on cleavage)...
Orange calcite
Orange Calcite • CaCO₃ — calcite (carbonate group) Crystal system: Trigonal (rhombohedral) • Cleavage: perfect in 3 directions (rhombohedral) Mohs: ~3 • SG: ~2.71 • Luster: vitreous (pearly on cleavage)...
Mahogany obsidian
Mahogany Obsidian • Volcanic glass (mineraloid) Chemistry: Silica‑rich melt (rhyolitic) Mohs ~5–5.5 • SG ~2.3–2.45 Fracture: Conchoidal • Luster: Vitreous Pattern: Brown‑mahogany swirls in black glass Mahogany Obsidian — Lava’s...
Mahogany obsidian
Mahogany Obsidian • Volcanic glass (mineraloid) Chemistry: Silica‑rich melt (rhyolitic) Mohs ~5–5.5 • SG ~2.3–2.45 Fracture: Conchoidal • Luster: Vitreous Pattern: Brown‑mahogany swirls in black glass Mahogany Obsidian — Lava’s...