Rock Identifier

A broad starting point for field finds when you need a grounded first read and the next traits to inspect.

Stone Identifier

Covers tumbled, decorative, and found stones that may be rock, mineral, glass, or another material.

Mineral Identifier

Works best when crystals, luster, habit, or a few simple observations can narrow the mineral family.

Fossil Identifier

Looks for preserved shapes, impressions, shells, bones, and matrix clues that separate fossils from ordinary rock texture.

Crystal Identifier

Suited to crystal points, clusters, and single specimens where shape, transparency, and growth pattern carry the identification.

Gemstone Identifier

Handles rough, cut, or polished gem material while staying clear about what still needs lab confirmation.

Meteorite Identifier

Screens unusual heavy stones against meteorite clues such as fusion crust, metal flecks, and terrestrial look-alikes.

Ore Identifier

Useful for metallic or mineral-rich rocks where visible minerals and host-rock context hint at what the specimen may contain.

Geode Identifier

Focuses on hollow nodules, crystal-lined cavities, and banded interiors that can overlap with quartz, agate, or chalcedony.

Gem Identifier

A plain-language read for loose or mounted gems, including likely identity, visible cut clues, and limits of photo-only judgment.

Quartz Crystal Identifier

Covers clear, smoky, rose, milky, and included quartz, plus the glass and calcite look-alikes often confused with it.

Amethyst Identifier

Built around purple quartz: crystal points, geodes, color zoning, inclusions, and signs of treatment.

Turquoise Identifier

Uses matrix, surface texture, and color consistency to separate turquoise from dyed stones and common substitutes.

Agate Identifier

Best for banded chalcedony, nodules, and polished pieces where pattern and translucency reveal the variety.

Diamond Identifier

Looks at diamond-like stones without promising authenticity that normally requires gemological testing.

Gold Specimen Identifier

Helps sort gold-colored flakes, nuggets, and jewelry from pyrite, brass, mica, plating, and other impostors.

Bone Identifier

Reads pore structure, surface texture, and break patterns to separate skeletal material from stone, shell, wood, or coral.

Glass Piece Identifier

Covers sea glass, slag, art glass, and crystal-like pieces where bubbles, wear, fracture, and color tell the story.

Shell Identifier

Uses shape, aperture, sculpture, and habitat context to narrow beach finds and marine specimens.

Shark Tooth Identifier

Matches fossil and modern shark teeth through crown shape, serrations, root form, size, and preservation.

Arrowhead Identifier

Focuses on worked stone points and fragments where flaking and edge form matter more than outline alone.

Silver Item Identifier

Reads marks, tarnish, construction, and surface tone on coins, jewelry, and flatware before any physical test.

Ruby Identifier

Looks at red gemstones in context, especially hue, transparency, inclusions, and common ruby look-alikes.

Marble Identifier

Covers collectible glass and clay marbles, where swirl structure, seams, size, and wear point to type or era.

Pearl Identifier

Uses luster, shape, surface texture, and drill holes to separate natural, cultured, and imitation pearls.

Coral Identifier

Looks beyond color to pore pattern, branching, and surface texture in coral-like pieces, reef specimens, and fossils.

Metal Identifier

Combines visible wear, corrosion, marks, color, and optional magnetism or weight notes to narrow unknown metals.

Granite Identifier

For countertops, building stone, and field rocks that look granitic, with emphasis on grain size and mineral mix.

Obsidian Identifier

Separates dark glassy stones by sharp fracture, edge translucency, luster, and volcanic context.