Identification guides

Quick answers to the questions people actually search for.

Smooth beach pebbles in different colors and patterns

2026-05-03

What Is This Rock I Found on the Beach? A 30-Second Identification Guide

Most beach rocks fall into one of five families. Three quick tests narrow yours down before you even look up the species. Tables, diagnostics, and the rookie agate confusions to avoid.

Houseplant in soil with close-up of soil texture

2026-05-03

What Are These Small White Worms in My Plant Soil? Three Species, One Decision Tree

95% of white worms in potting soil are one of three species. Quick visual diff, what they actually do to your plant, and what to do about each.

Close-up of a small dark insect on a surface

2026-05-03

What Is This Tiny Black Bug in My House? Identify by Where You Saw It

Skip the bug-by-bug catalogs. Where you spotted it narrows the possibilities to 2–3 species. Decision table, the bedbug confirmation that matters, and how to handle the rest.

Close-up of a small brown insect on a pale surface

2026-05-13

What Is This Tiny Brown Bug in My Bathroom? Five Species, One Common Cause

Brown bugs in the bathroom are almost always one of five species. The cause is the same for all of them: humidity. Identify and fix in one pass.

Close-up of granite rock with sparkling mineral grains

2026-05-13

What Is This Shiny Rock With Sparkles? The Five Sparkle Sources

Sparkles in a rock come from one of five minerals. Color of the sparkle and how it flakes tells you which — and whether you have fool's gold or actual gold.

2026-05-13

What Weed Is This in My Lawn? The Five Most Common, by Leaf Shape

Five weeds make up 80% of lawn complaints. Identify by leaf shape and growth habit, then match the right control. Treating the wrong category wastes the bottle.

2026-05-13

Is This Mushroom Poisonous? The Honest Answer Before You Pick Anything

Three deadly mushrooms imitate common edibles. Apps cannot keep you safe. What to actually check, when AI helps, and when only a human mycologist will do.

Antique silver coin resting on burlap fabric

2026-05-13

Is This Coin Valuable? What Actually Determines Value (and What Doesn't)

Most coins aren't valuable. Four signals consistently are: silver content, key dates, mint errors, and grade. Five common myths that don't move the needle.

Rusty vintage hand tools on a wooden workbench

2026-05-13

What Is This Old Tool I Found? Identifying Antique Hand Tools

Old tools in basements, barns, and attics. Five categories cover most finds. Brand markings, handle types, and form tell you what it is and roughly when it was made.

Assortment of seashells arranged on a flat surface

2026-05-13

What Shell Is This from the Beach? Identify by Shape First, Then Pattern

Beach shells split into two camps at the first cut: univalve or bivalve. From there, shape and aperture narrow the species. Quick table and the protected species to leave behind.

Oil painting of a landscape on a wooden easel

2026-05-13

How to Tell If a Painting Is Valuable: What Auctioneers Look For First

Most paintings are decorative, not collectible. Six features separate the two, and one of them is almost always missing on prints sold as originals.

Handmade ceramic pottery pieces drying in a workshop

2026-05-13

What Is This Mark on the Bottom of Pottery? Reading Maker Stamps in 60 Seconds

Pottery marks date and place a piece quickly. Country format alone narrows the era. Five mark systems cover most of what you'll find in a house.

Close-up of a corroded, rusted metal surface with textured patterns

2026-05-13

What Is This Rusty Metal Object in My Yard? A Field Guide to Yard Finds

Rusty things in the soil are almost always one of seven categories. Magnet test, shape, and burial depth narrow it. The history of the property usually fills in the rest.