# RockScan — Crystal Identifier
> RockScan is the crystal identifier app that names rocks, minerals, gemstones, and fossils from a photo — with a collector directory, real-vs-fake guides, and value context.

Primary site: https://rockidentifier.tech
Web app: https://rockidentifier.tech/app
Also: https://crystalidentifier.org (301 → https://rockidentifier.tech/crystal-identifier and other paths)

## Key pages
- https://rockidentifier.tech/ — RockScan hub (crystal + rock identifier)
- https://rockidentifier.tech/app — Web identifier (upload photo)
- https://rockidentifier.tech/crystal-identifier — Crystal identifier landing
- https://rockidentifier.tech/rock-identifier — Rock identifier landing
- https://rockidentifier.tech/gem-identifier — Gem identifier landing
- https://rockidentifier.tech/mineral-identifier — Mineral identifier landing
- https://rockidentifier.tech/directory — Specimen directory hub
- https://rockidentifier.tech/guides/real-vs-fake — Authenticity guides

## Programmatic specimen guides
- https://rockidentifier.tech/crystals/diamond — Diamond: The hardest natural mineral and the April birthstone — prized for brilliance and durability.
- https://rockidentifier.tech/crystals/amethyst — Amethyst: Purple quartz variety and February birthstone — common in geodes and crystal points.
- https://rockidentifier.tech/crystals/citrine — Citrine: Golden quartz — much market material is heated amethyst; disclose treatment.
- https://rockidentifier.tech/crystals/aquamarine — Aquamarine: Sea-blue beryl and March birthstone — sister species to emerald.
- https://rockidentifier.tech/crystals/emerald — Emerald: The green king of gems — May birthstone — usually included and often oiled.
- https://rockidentifier.tech/crystals/ruby — Ruby: Red corundum and July birthstone — second only to diamond in hardness among common gems.
- https://rockidentifier.tech/crystals/sapphire — Sapphire: Blue corundum and September birthstone — durable enough for daily wear.
- https://rockidentifier.tech/crystals/rosequartz — Rose Quartz: Soft pink quartz used widely in tumbled stones, beads, and cabochons.
- https://rockidentifier.tech/crystals/obsidian — Obsidian: Natural volcanic glass — historically prized for razor-sharp tools.
- https://rockidentifier.tech/crystals/turquoise — Turquoise: Iconic blue-green gem — Persian material remains the trade benchmark.
- https://rockidentifier.tech/crystals/malachite — Malachite: Banded green copper mineral — field indicator of copper oxidation zones.
- https://rockidentifier.tech/crystals/lapis — Lapis Lazuli: Ancient royal-blue gem rock — Afghan Badakhshan still leads fine trade grades.
- https://rockidentifier.tech/crystals/fluorite — Fluorite: Color-zoned cubic crystals — industrial flux mineral and collector favorite.
- https://rockidentifier.tech/crystals/pyrite — Pyrite: Fool's gold — metallic cubic crystals that fooled many prospectors.
- https://rockidentifier.tech/crystals/opal — Opal: October birthstone famous for spectral play-of-color.
- https://rockidentifier.tech/crystals/topaz — Topaz: Hard November birthstone — imperial sherry colors are most prized.
- https://rockidentifier.tech/crystals/garnet — Garnet: January birthstone family — far more colorful than dark-red stereotypes.
- https://rockidentifier.tech/crystals/jade — Jade: Tough carving stone — jadeite and nephrite are distinct minerals sold as jade.
- https://rockidentifier.tech/crystals/moonstone — Moonstone: Feldspar gem showing floating blue billowy light — adularescence.
- https://rockidentifier.tech/crystals/peridot — Peridot: August birthstone — one of the few gems that forms in the mantle.
- https://rockidentifier.tech/crystals/quartz — Clear Quartz: The archetypal crystal — piezoelectric workhorse of industry and field ID baseline.
- https://rockidentifier.tech/crystals/labradorite — Labradorite: Feldspar famous for labradorescence — an inner spectral flash.
- https://rockidentifier.tech/crystals/pearl — Pearl: Organic gem grown by mollusks — Gulf waters once defined natural pearl trade.
- https://rockidentifier.tech/crystals/amber — Amber: Fossilized tree resin — sometimes preserving ancient insects.
- https://rockidentifier.tech/crystals/carnelian — Carnelian: Aqiq (carnelian) — cornerstone of Islamic and Gulf heritage jewelry and seals.
- https://rockidentifier.tech/crystals/agate — Agate: Banded chalcedony — workhorse of beads, cabochons, and decorative stone trade.
- https://rockidentifier.tech/crystals/onyx — Onyx: Parallel-banded chalcedony — black onyx is a classic men's jewelry stone.
- https://rockidentifier.tech/crystals/coral — Coral: Organic gem of Mediterranean and Asian jewelry trade — soft and acid-sensitive.
- https://rockidentifier.tech/crystals/tigerseye — Tiger's Eye: Chatoyant golden quartz — staple cabochon for men's jewelry and beads.
- https://rockidentifier.tech/crystals/hematite — Hematite: Primary iron ore mineral — also cut as metallic gray beads and cabochons.
- https://rockidentifier.tech/crystals/howlite — Howlite: White veined borate — the classic turquoise simulant when dyed blue.
- https://rockidentifier.tech/crystals/jasper — Jasper: Opaque patterned chalcedony — historic seal and bead stone across trade routes.
- https://rockidentifier.tech/crystals/bloodstone — Bloodstone: Dark green chalcedony with red hematite spots — traditional March alternative stone.
- https://rockidentifier.tech/crystals/chalcedony — Chalcedony: Parent microcrystalline quartz of agate, carnelian, onyx, and jasper varieties.
- https://rockidentifier.tech/crystals/spinel — Spinel: Historic ruby lookalike — now valued on its own as a fine gem.
- https://rockidentifier.tech/crystals/tanzanite — Tanzanite: Blue-violet zoisite known from a single mining district in Tanzania.
- https://rockidentifier.tech/crystals/tourmaline — Tourmaline: Strongly pleochroic gem group spanning virtually every color.
- https://rockidentifier.tech/crystals/morganite — Morganite: Pink beryl — sister to emerald and aquamarine.
- https://rockidentifier.tech/crystals/kunzite — Kunzite: Lilac-pink spodumene — strongly pleochroic and cleavage-sensitive.
- https://rockidentifier.tech/crystals/zircon — Zircon: High-dispersion natural gem — not to be confused with cubic zirconia.
- https://rockidentifier.tech/crystals/alexandrite — Alexandrite: Color-change chrysoberyl — among the rarest and costliest gems.
- https://rockidentifier.tech/crystals/chrysoberyl — Chrysoberyl: Hard yellow-green gem — cat's-eye chrysoberyl is the classic cymophane.
- https://rockidentifier.tech/crystals/iolite — Iolite: Strongly pleochroic violet-blue gem — the Viking's compass stone of legend.
- https://rockidentifier.tech/crystals/apatite — Apatite: Soft neon-colored phosphate — striking but jewelry-sensitive.
- https://rockidentifier.tech/crystals/amazonite — Amazonite: Green microcline feldspar popular for cabochons and carvings.
- https://rockidentifier.tech/crystals/sodalite — Sodalite: Opaque royal-blue feldspathoid — affordable lapis lookalike in trade.
- https://rockidentifier.tech/crystals/rhodochrosite — Rhodochrosite: Banded rose-pink manganese carbonate — soft collector and cabochon stone.
- https://rockidentifier.tech/crystals/rhodonite — Rhodonite: Pink manganese silicate with black veining — classic ornamental stone.
- https://rockidentifier.tech/crystals/chrysocolla — Chrysocolla: Soft blue-green copper silicate — field indicator of copper oxidation.
- https://rockidentifier.tech/crystals/chrysoprase — Chrysoprase: Nickel-green chalcedony — the finest green cryptocrystalline quartz.
- https://rockidentifier.tech/crystals/sunstone — Sunstone: Aventurescent feldspar — Oregon copper sunstone is a modern specialty gem.
- https://rockidentifier.tech/crystals/aventurine — Aventurine: Sparkling quartzite — green fuchsite aventurine dominates bead trade.
- https://rockidentifier.tech/crystals/kyanite — Kyanite: Blue metamorphic silicate with direction-dependent hardness — a classic field ID.
- https://rockidentifier.tech/crystals/prehnite — Prehnite: Translucent green botryoidal silicate popular for cabochons.
- https://rockidentifier.tech/crystals/sugilite — Sugilite: Royal purple cyclosilicate — scarce and popular with collectors.
- https://rockidentifier.tech/crystals/moldavite — Moldavite: Green tektite from the Ries impact — heavily faked in jewelry markets.
- https://rockidentifier.tech/crystals/serpentine — Serpentine: Soft green carving stone — common jade simulant in trade.
- https://rockidentifier.tech/crystals/native-gold — Native Gold: Native precious metal — soft, dense, malleable; the ultimate ore commodity.
- https://rockidentifier.tech/crystals/silver — Native Silver: Native silver — wire and dendritic crystals are classic collector forms.
- https://rockidentifier.tech/crystals/copper — Native Copper: Native copper — malleable red metal and historic Michigan ore staple.
- https://rockidentifier.tech/crystals/chalcopyrite — Chalcopyrite: Primary copper ore sulfide — softer and deeper yellow than pyrite.
- https://rockidentifier.tech/crystals/galena — Galena: Primary lead ore — perfect cubic cleavage and extreme density.
- https://rockidentifier.tech/crystals/sphalerite — Sphalerite: Primary zinc ore — resinous luster and perfect cleavage distinguish it.
- https://rockidentifier.tech/crystals/magnetite — Magnetite: Strongly magnetic iron oxide ore — octahedral crystals classic.
- https://rockidentifier.tech/crystals/cassiterite — Cassiterite: Primary tin ore — dense adamantine crystals and placer concentrates.
- https://rockidentifier.tech/crystals/bauxite — Bauxite: Primary aluminum ore rock — pisolitic red-brown residual deposit.
- https://rockidentifier.tech/crystals/cinnabar — Cinnabar: Primary mercury ore — vivid red, extremely dense, and toxic if mishandled.
- https://rockidentifier.tech/crystals/stibnite — Stibnite: Primary antimony ore — slender metallic prismatic crystals.
- https://rockidentifier.tech/crystals/molybdenite — Molybdenite: Primary molybdenum ore — soft metallic flakes mistaken for graphite.
- https://rockidentifier.tech/crystals/chromite — Chromite: Primary chromium ore — black spinel of ultramafic layered complexes.
- https://rockidentifier.tech/crystals/wolframite — Wolframite: Major tungsten ore — dense dark blades with perfect cleavage.
- https://rockidentifier.tech/crystals/calcite — Calcite: Defining Mohs 3 mineral — rhombohedral cleavage and acid fizz.
- https://rockidentifier.tech/crystals/gypsum — Gypsum: Mohs 2 evaporite — feedstock for plaster and drywall.
- https://rockidentifier.tech/crystals/halite — Halite: Rock salt — cubic cleavage, salty taste, evaporite industrial staple.
- https://rockidentifier.tech/crystals/talc — Talc: Softest Mohs mineral — greasy feel defines industrial talc/soapstone.
- https://rockidentifier.tech/crystals/graphite — Graphite: Soft carbon allotrope — pencils, refractories, and battery anode feedstock.
- https://rockidentifier.tech/crystals/sulfur — Sulfur: Native yellow sulfur — volcanic and evaporite industrial feedstock.
- https://rockidentifier.tech/crystals/barite — Barite: High-density sulfate — drilling mud weighting agent and collector blades.
- https://rockidentifier.tech/crystals/muscovite — Muscovite: Common mica — flexible transparent sheets used as electrical insulator.
- https://rockidentifier.tech/crystals/dolomite — Dolomite: Magnesian carbonate rock-forming mineral — slower acid reaction than calcite.
- https://rockidentifier.tech/crystals/kaolinite — Kaolinite: Primary china-clay mineral — ceramics, paper, and industrial filler.
- https://rockidentifier.tech/crystals/granite — Granite: Coarse felsic intrusive rock — continental crust cornerstone and dimension stone.
- https://rockidentifier.tech/crystals/basalt — Basalt: Fine-grained mafic volcanic rock — Earth's most common volcanic rock.
- https://rockidentifier.tech/crystals/pumice — Pumice: Ultralight vesicular volcanic rock — can float on water.
- https://rockidentifier.tech/crystals/rhyolite — Rhyolite: Fine-grained felsic volcanic equivalent of granite.
- https://rockidentifier.tech/crystals/gabbro — Gabbro: Coarse mafic intrusive equivalent of basalt — dense dark rock.
- https://rockidentifier.tech/crystals/sandstone — Sandstone: Cemented sand — reservoir rock, building stone, and desert landform maker.
- https://rockidentifier.tech/crystals/limestone — Limestone: Calcite-dominated sedimentary rock — cement feedstock and fossil archive.
- https://rockidentifier.tech/crystals/shale — Shale: Fissile mudrock — Earth's most abundant sedimentary rock.
- https://rockidentifier.tech/crystals/conglomerate — Conglomerate: Rounded gravel in matrix — records high-energy transport.
- https://rockidentifier.tech/crystals/marble — Marble: Recrystallized carbonate rock — classic sculpture and architecture stone.
- https://rockidentifier.tech/crystals/slate — Slate: Fine-grained foliated rock that splits into thin roofing sheets.
- https://rockidentifier.tech/crystals/gneiss — Gneiss: Banded high-grade metamorphic rock of continental shields.
- https://rockidentifier.tech/crystals/schist — Schist: Shiny foliated rock — mica alignment defines schistosity.
- https://rockidentifier.tech/crystals/quartzite — Quartzite: Hard metamorphosed sandstone — fractures through grains, not around them.
- https://rockidentifier.tech/crystals/coal — Coal: Combustible organic rock — peat→lignite→bituminous→anthracite rank series.
- https://rockidentifier.tech/crystals/ammonite — Ammonite: Extinct coiled cephalopod fossil — ammolite is the iridescent gem variety.
- https://rockidentifier.tech/crystals/trilobite — Trilobite: Paleozoic arthropod fossil — three-lobed body plan is diagnostic.
- https://rockidentifier.tech/crystals/petrified-wood — Petrified Wood: Silicified fossil wood preserving growth rings and grain.
- https://rockidentifier.tech/crystals/azurite — Azurite: Deep blue copper carbonate — classic oxide-zone associate of malachite.
- https://rockidentifier.tech/crystals/aragonite — Aragonite: Orthorhombic CaCO₃ polymorph — higher SG than calcite; biogenic in shells.
- https://rockidentifier.tech/crystals/celestine — Celestine: Sky-blue strontium sulfate — industrial Sr source and geode favorite.
- https://rockidentifier.tech/crystals/dioptase — Dioptase: Emerald-green copper silicate — fragile collector crystal classic.
- https://rockidentifier.tech/crystals/vanadinite — Vanadinite: Bright red hexagonal lead vanadate — vanadium ore accessory and specimen favorite.
- https://rockidentifier.tech/crystals/wulfenite — Wulfenite: Thin orange tabular lead molybdate — iconic Arizona collector mineral.
- https://rockidentifier.tech/crystals/apophyllite — Apophyllite: Blocky pearly crystals from basalt geodes — Deccan trap classic.
- https://rockidentifier.tech/crystals/stilbite — Stilbite: Sheaf-like zeolite crystals — peach stilbite from India is ubiquitous in trade.